Week 4 Quiz 8/27/21

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

• 1
• 2
• 3
• 4

What is the first step to solve for x.  $-9\ +\ 3x\ =\ 10$  

• Subtract 9 from both sides of the equation.

• Add 9 to both sides of the equation.  

• Subtract 3 from both sides of the equation.

• Add 10 to both sides of the equation.  

Solve 8 = 4v + 12

• -1

• 1

• 0

• -10

Solve 7k - 14 = 42

• 7

• -8

• 0

• 8

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.

Solve  $\frac{x}{5}+2\ =\ 6$  

• t = 20

• t = -20

• t = -40

• t = 40

What was done to solve the equation?

(Line 1) 5x - 8 = 32

(Line 2) 5x = 40

(Line 3) x = 8

• add 8 to both sides, then divide both sides by 5

• add 8 to both sides, then divide both sides by 40

• subtract 8 from both sides, then divide both sides by 5

• subtract 8 from both sides, then multiply both sides by 5

Solve for x.

3x - 5 = 4

• x = 1/3

• x = 3

• x = -1/3

• x = -3

Solve for x. $\frac{x}{7}-8=16$  

• x = 56

• x = 8/7

• x = 24/7

• x = 168

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5
• Add 6 to both sides and multiply both sides by 5
• Subtract 6 from both sides then multiply both sides by 5
• Subtract 6 from both sides then divide both sides by 5