Solving Multi-step Equations

3a + 9 + 4a = 2

• -1
• 1
• no solution
• -7

What is the first step in solving the equation 2a - 4(a - 5) = 10

• Add 4 to both sides
• Add the 2a and a 
• Distribute 4 to a and -5
• Distribute -4 to a and -5

4(a + 3) = -32

• -11
• -44
• -20
• -8

2 + 14a = -8 + 9a

• -2
• 3
• 5
• -10

-a = 9(a - 10)

• 9
• 1
• 90
• 10

22 + 2a = 37 + 6 + a

• 21
• -21
• 5
• 6

0.75 + 2(a - 0.5) = 3a - 0.4

• 0.15
• 5
• 1.5
• 3.75

2x - 3 + 4x = 27

• 12
• 4
• 5
• 15

2x + 3(5x - 7) = 47

• 1
• 2
• 3
• 4

-(n - 8) = -2

• 6
• 10
• -10
• -6