Equations Review

For which equation would you add 12 as the first step?

Solve: 9 + k = 18

• k = 18

• k = 9

• k = 8

• k = 7

Solve: 3w = 30

• w = 6

• w = 9

• w = 10

• w = 12

Solve: 13 = t + 7

• t = 5

• t = 6

• t = 7

• t = 20

You solve an equation and find that 7 = 9 in your final step. What does this mean?

• The equation has 1 solution.

• The equation has no solution.

• The equation has infinitely many solutions.

• The equation is an identity.

What is the solution to the equation 3(2x - 5) = x + 10?

• 9

• 6

• 8

• 5

Solve the equation -3(1 + 6x) = 14 - x.

• x = 1

• x = -1

• No solution

• All real numbers

Write the phrase "the difference of 4 and a number" as a variable expression.

• x - 4

• 4 - x

• x + 4

• 4 + x

Solve the equation 2(5x - 2) = 8x.

• -2

• 1

• 2

• -1

What is the solution to the equation 3(5x + 4) - 20 = 13x - 4?

• 2

• 8

• -2

• 4