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4y -9x =-23 x=y-3 what is the y-value

User MadRabbit
by
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1 Answer

6 votes

Answer:

y = 10

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

User Charlie Wu
by
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