Solving and Writing Equations

4x - 7 = 21

• x = 12

• x = 7

• x = 24

What is the first step to solve this equation:

-3x + 11 = 44

• Add 3 to both sides

• Subtract 11 from both sides

• Add 11 to both sides

• Divide 3 on both sides.

3c + 5 = 23

• c = 3
• c = 6
• c = 7
• c = 18

2k + 12 = -4

• -8
• 8
• -10
• 4

0 = 8z + 8 

• -1
• 1
• 0
• 8

What is the first step in solving this equation 8x - 6 = 10

• Add 6

• Subtract 8

• Divide by 8

• Subtract 6

• 2
• 4
• 6
• 8

4 + 7a + 6 - 2a = 45

• a = 5

• a = 8

• a = - 4

• a = 7

-9(w - 4) = 54

• w = 10

• w = -6

• w = -3

• w = -2

-10(2m + 1) = - 50

• m = -7

• m = 20

• m = 5

• m = 2