kayli2582
21.10.2019 •
Mathematics
Gh=7y+3, hi=3y-5, gi=9y+7. what is the value of y
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Ответ:
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
Ответ:
6 aend 7
Step-by-step explanation:
they got on more so leeaseea