Asked by dustin
solve by substution
4x-3y=36
x=2y+7 solution
4x-3y=36
x=2y+7 solution
Answers
Answered by
drwls
(1) 4x -3y = 36
(2) x - 2y = 7 mpy last eq. by 4:
(3) 4x - 8y = 28 subtract #3 from #1
(4) 5y = 8
y = 8/5 = 1 3/5
x = 7 + 2y = 10 1/5
(2) x - 2y = 7 mpy last eq. by 4:
(3) 4x - 8y = 28 subtract #3 from #1
(4) 5y = 8
y = 8/5 = 1 3/5
x = 7 + 2y = 10 1/5
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