| Solving equations with variables on both sides | Solving one step equations | Solving two step equations and parentheses | Solving proportions |
|---|---|---|---|
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w = 23
What is w equal in the following equation 7w + 2 = 3w + 94?
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x = 3
What is x in the following equation x + 9 = 12?
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a = 7/10
What is a in the following equation 5 + 10 ( a + 2) = 32?
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x = 9
What is x in the following equation x + 1 / 5 = x - 3 / 3?
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y = 7
What is y in the following equation 4y - 6 = 2y + 8?
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z = 14
What is z in the following equation 3 = z - 11?
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x = 2
What is x in the following equation 2( 8x + 16 ) = 64?
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n = 29/2
What is n in the following equation n + 3 /5 = 7/2?
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1. Instead of adding -5y they kept the negative sign
2. Instead of adding -8 they kept the negative sign 3. Because they added both times wrong they got the wrong answer
What is the error in the following equation?
-5y + 4 = 7y - 8 -5 -5 4 = 2y - 8 -8 -8 -4 = 2y /2 /2 y = -2 |
They should have subtracted instead of adding 2 to both sides.
What is the error in the following equation?
8 = 2 + q +2 +2 11 = q |
There are no errors.
What is the error in the following equation?
2 ( 6x + 4 ) = 48 12x + 8 = 48 -8 -8 12x = 40 /12 /12 x = 10/3 |
Instead of showing that they multiplied 5 by 3 they just put the answer
What is the error in the following equation?
x + 2 / 5 = 3 / 8 8(x+2) = 15 8x + 16 = 15 -16 -16 8x = -1 /8 /8 x = -1/8 |
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There are no errors.
What is the error in the following equation ?
2t - 3 = 9 - 4t +4t +4t 6t - 3 = 9 +3 +3 6t = 12 /6 /6 t = 2 |
No errors
What is the error in the following equation?
r - 2 = 5 +2 +2 r = 7 |
1. Didn't multiply 6 by 6x
2. Because they multiplied wrong in the beginning they got divided by the wrong number. 3. Got a decimal as the answer when it should be a fraction.
What is the error in the following equation?
6 ( 6x - 11 ) = 150 6x - 11 = 150 +11 +11 6x = 160 /6 /6 x = 26.666 |
1. Subtracted 66 - 14 wrong
2. Because they subtracted wrong they divided by the wrong number 3. They got the wrong answer
What is the error in the following equation?
6 / r + 7 = 2 /11 6(11) = 2 ( r+7) 66 = 2r + 14 -14 -14 50 = 2r /2 /2 r = 25 |
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7x + 60 = 5x + 120
-5x -5x 2x + 60 = 120 -60 -60 2x = 60 /2 /2 x = 30 weeks It will take 30 weeks for you and your sister to have the same amount of money
What is the amount of time it will take for you and your sister to have the same amount of money if you have $60 and your sister has $120, and you save $7 per week and your sister saves $5 per week? Write an equation and solve.
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45 = b + 27
-27 -27 18 = b
What is the amount of pieces Lea gave away if she won 45 pieces of gum and gave one to each of her friends and now she only has 27 remaining? Write and solve the equation
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12x + $45 = $117
-45 -45 12x = $72 /12 /12 x = 6 You played 6 games. What is the amount of games you played if you spent $117 and the bowling league requires you to buy a bowling ball for $45 and pay $12 for each? Write and solve the equation |
75/x = 50/$25
75(25) = 50(x) 1875 = 50x /50 /50 x = 37.5 75 apples would cost $37.5
What is the amount 75 apples would cost if 50 apples cost $25? write and solve the equation
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