solve for y and x 3x-5y=7 2x+3y=30

how to solve 3x-5y=7 2+3y=30 using substitution method.
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2 Answers

line 1: 3x-5y=7 or y=(3x-7)/5

line 2: 2x+3y=30

2x+3*(3x-7)/5=30

10x+3*(3x-7)=150

19x -21=150

19x=171

x=9

y=(3x-7)/5=(27-7)/5=20/5=4
by
9 solve for y as indicated, given a=5 and b =60 degree round to three.
by

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