207k views
3 votes
7(w+2)=-6(2w-1)+3w
solve for w.​

User Luzo
by
5.2k points

1 Answer

5 votes

9514 1404 393

Answer:

w = -1/2

Explanation:

Eliminate parentheses, collect terms:

7w +14 = -12w +6 +3w . . . eliminate parentheses

7w +14 = -9w +6 . . . . . . . . collect terms

16w +14 = 6 . . . . . . . . . . . . add 9w

16w = -8 . . . . . . . . . . . . . . . subtract 14

w = -1/2 . . . . . . . divide by 16, reduce the fraction

__

Check

7(-1/2 +2) = -6(2(-1/2) -1) +3(-1/2)

7(3/2) = -6(-2) -3/2

21/2 = 12 -3/2 . . . . . true, answer checks OK

User Jouby
by
4.9k points