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whitneyt2013
15.01.2021 •
Mathematics
4y -9x =-23 x=y-3 what is the y-value
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Ответ:
y = 10
Step-by-step explanation:
Use the substitution method since you already know what x equals.
4y - 9(y - 3) = -23
Simplify:
4y - 9y + 27 = -23
Combine like terms:
-5y + 27 = -23
Isolate y by subracting 27 from both sides:
-5y = -50
Divide by -5 to get y by itself:
-5/-5 = y
-50/-5 = 10
Ответ:
-3 i think hope this helps