Solving Multi-Step Equations

Solve:
3x + 7 = -8

• 5

• -5

• -12

• -18

Solve.  5n - 4 = 21

• 10

• -5

• 5

• 2

Solve.  -2n - 4 = 32

• 18

• 0

• 16

• -18

Solve.   -45 = 5 - 5n

• 10

• 12

• -10

• 5

Solve:
3(x - 2) = 18

• 6.7

• 4

• 8

• -4

-15 = 5a +12- 2a + 6

• -11

• -3

• 10

• 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

8 = (³⁄₄)a +12 - a + 4

• 32

• -6

• -4

• 4

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

• one solution

• infinitely many

• no solution

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

• 0.15

• 5

• 1.5

• 3.75