Mathematics
Jayjaygwapz123
2015-11-20 20:10:57
GH=7y+3, HI=3y-5, GI=9y+7. What is the value of Y
ANSWERS
apdjmvgyovqalgn
2015-11-21 00:33:58

GH = 7y + 3 , HI = 3y - 5, GI = 9y + 7 7y + 3 + 3y - 5 = 9y + 7 10y - 2 = 9y + 7 10y - 9y = 7 + 2 y = 9 <=== lets check that.. 7(9) + 3 + 3(9) - 5 = 9(9) + 7 63 + 3 + 27 - 5 = 81 + 7 93 - 5 = 81 + 7 88 = 88 (correct) so yes, y = 9

ADD ANSWER