Spring Final 2021

Which equation has x = 5 as the solution?

• x + 15 = 10
• 2x = 5
• 2x = 10

What what is the inverse operation of subtraction?

• addition
• subtraction
• multiplication
• division

Solve the equation
3x = 27. 

• x = 24
• x = 81
• x = 9

y - 33 = 147

• y = 114
• y = 177
• y = 180
• Answer not Given

Which equation has w = 8 as the solution?

• 8w= 64
• 16w = 240
• 16 - w = 9
• 4 + w = 10

Solve the equation: 
x + 7 = 12

• x = 5
• x = 19
• x = -5
• x = 84

Solve the equation:
x - 4 = -3

• x = -7
• x = 1
• x = 12
• x = -12

Solve the equation:
x - 3 = -12

• x = 9 
• x = -15
• x = -9
• x = 15

Given the equation y = mx + b.  What should we do first to solve for x?

• Add

• Multiply

• Subtract

• Divide

 $Given\ ax-b=c,\ solve\ for\ x.\$  

•  $x\ =\ \frac{c+b}{a}$  

•  $x\ =\ \frac{c-b}{a}$  

•  $x\ =\ \frac{a+b}{c}$  

•  $x\ =\ \frac{c+a}{b}$