Math 8 Solving equations QUIZ

What is the second step in solving the following equation?

-3x + 5 = 20

• Subtract 5 from both sides

• Divide both sides by -3

• Divide both sides by 3

• add 3x to both sides

• None of the above

Solve: 3(x-4) = -3

• 3

• 1/3

• 5

• -5

• None of the above

Solve for s:

• s= 10

• s= -6

• s= 18

• s=-10

• None of the above

7 + ^a⁄₃ = 5

• a= -2

• a= -6

• a= 3

• a= 15

• None of the above

20 = 2 - a

• a= 18

• a= -18

• a= -10

• a= 12

• None of the above

50 = 28.1 + 0.15a

• a= 150

• a= 146

• a= 6

• a= 155

• None of the above

Solve the equation:

3(x - 1) = 2x + 9

• x = 12

• no solution

• x = 10

• x = 6

• None of the above

Solve the equation:

½ (2x + 6) = 3x + 13

• no solution

• x = 8

• x = -5

• x = 7

• None of the above

½x + ⅓x = 5

• x = ⅕

• x = 1

• x = 5

• x = 6

• None the above

The objective when solving an equation is to

• isolate the variable

• check the solution

• Get rid of the parentheses

• Combine Like Terms

• None of the above