7(w+20)-w=5 w=?

Question

need help on answer

Answer 1

7(w+20)-w=5 w=?

 

Distribute the 7 through parenthesis

7w + 7(20) - w = 5

7w + 140 - w = 5

combine like terms

6w + 140 = 5

subtract 140 from both sides

6w = -135

divide both sides by 6

w = -135/6

w = -22 3/6 = -22 1/2