Question

Solve the equation x-7=4(x+5)

Answer 1

x = -9

Explanation:

x - 7 = 4(x + 5)

x - 7 = 4x + 20

-27 = 3x

x = -9

Answer 2

x = -9

Explanation:

x-7=4(x+5)

Distribute

x-7 = 4x+20

Subtract x from each side

x-7-x =4x-x+20

-7 = 3x+20

Subtract 20 from each side

-7-20 = 3x+20-20

-27 = 3x

Divide by 3

-27/3 = 3x/3

-9 =x