Question

Resolver pOr El metodo de reduccion :

8x-5=7y-9
6x=3y+6
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x-1=y+1
x-3=3y-7
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Answer 1

8x - 5 = 7y - 9

6x = 3y + 6
2x = y + 2
2x - 2 = y

8x - 5 = 7y - 9
8x - 5 = 7(2x - 2) - 9
8x - 5 = 14x - 14 - 9
18 = 6x
3 = x

2x - 2 = y
2(3) - 2 = y
4 = y
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x - 1 = y + 1
x = y + 2

x - 3 = 3y - 7
y + 2 - 3 = 3y - 7
6 = 2y
3 = y

x = y + 2
x = 3 + 2
x = 5