Topic 11: Solving multi-step equations

What is the first step to solve this equation?
x - 5 = 7 - 2x

• Add 7 to both sides of the equation

• Add 2x to both sides of the equation

• Subtract 2x from both sides of the equation

• Subtract 5 from both sides of the equation

Tags

CCSS.8.EE.C.7

3a + 9 + 4a = 2

• -1
• 1
• no solution
• -7

Tags

CCSS.8.EE.C.7B

22 + 2a = 37 + 6 + a

• 21
• -21
• 5
• 6

Tags

CCSS.8.EE.C.7

2 + 14a = -8 + 9a

• -2
• 3
• 5
• -10

Tags

CCSS.8.EE.C.7

Solve the equation:
3x - x + 4 = 4(2x +1)

• no solution
• infinite solutions
• x = 6
• x = 0

Tags

CCSS.8.EE.C.7A

Identify if this equation has one solution, infinitely many solutions or no solution.
-3x+1=x+9-4x

• one solution
• infinitely many
• no solution

Tags

CCSS.8.EE.C.7A

Solve the equation:
3(x - 1) = 2x + 9

• x = 12
• no solution
• x = 10
• x = 6

Tags

CCSS.8.EE.C.7

Solve for a:  $8\ =\ \frac{3}{4}a\ +\ 12\ -\ a\ +\ 4$  

• 32

• -6

• -4

• 4