Question

Solve each of the following for x:

a. x+2=5
b. x²+2x=5x
c. x(5x−20)+2(5x−20)=5(5x−20)

Answer 1

a.) x = 3

b.) x = 0, 3

c.) x = 4, 3

Explanation:

a.)

x + 2 = 5

- 2 -2

x = 3

For b and c: Move all terms to the left side and set equal to zero. Then set each factor equal to zero.