Solve Equations with One Variable

Solve for x:
2(3x + 4) + 2 = 4 + 3x

• 2

• -2/3

• 10

• -2

Tags

CCSS.8.EE.C.7B

Solve for x:
7 - 2(10x + 1) = 25

• 2/5

• 2

• 1

• -1

Tags

CCSS.7.EE.B.4A

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

Tags

CCSS.6.EE.B.7

Solve for x:
3(5x + 10) + 10 = 6x - (x + 10)

• 3

• -3

• -5

• 5

What is the first step to solve this equation:
11 - 3x = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

Tags

CCSS.7.EE.B.4A

What is the first step in solving this equation:
5x + 7 = 12

• Divide by 5

• Subtract 5

• Multiply by 7

• Subtract 7

Tags

CCSS.7.EE.B.4A

Solve for x:
6(2x + 1) = 18

• 3

• 17/12

• 1

• 2

Tags

CCSS.7.EE.B.4A

Find y if \frac{y}{6} = 3

• 9

• 2

• 18

• 3

Tags

CCSS.6.EE.B.7

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step

• They should add 19 instead of subtracting 19

• I can not find an error

• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

Which of the following is an equation?

• 6x + 2x - 6

• 6x² + 10 = 25

• 6x² + 10 - 25

• 10y - 6 + 34u