hjoe523
22.03.2021 •
Mathematics
Answer this question please and thank you
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Ответ:
Ответ:
y = 11
Step-by-step explanation:
Solve for y
12y - 40 - 4y = 6y - 18
8y -40 = 6y - 18
8y - 6y - 40 = -18
2y - 40 = -18 ( the justification for step 2 is to isolate y on one side of the equation in order to solve for y )
2y - 40 + 40 = 40 - 18
2y = 22
2y/2 = 22/2
y = 11
Check :
12(11) - 40 - 4(11) = 6 (11) - 18
132 - 40 - 44 = 66 - 18
48= 48