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xeze [42]
3 years ago
13

How do i solve y=4y and x+y=5 while solving systems by subtitution

Mathematics
1 answer:
Deffense [45]3 years ago
7 0
Subtract y from both sides to get 0=3y and 5=y+x Multiply this one by -3 to get -15=-3y-3x The Ys cancel and you get -3x=-15 solve for x and substitute it in the y equation to check (y should be 0)
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