Question

Solve: -15b + 21 + 5b =-19

Answer 1

b = 4

Explanation:

-15b + 21 + 5b =-19

Combine like terms

-15b +5b +21 = -19

-10b +21 = -19

Subtract 21 from each side

-10b +21 -21 = -19-21

-10b = -40

Divide each side by -10

-10b/-10 = -40/-10

b = 4