3x-2y=1,2(2x-y)=8

Answer 1

3 x - 2 y = 1
4 x - 2 y = 8
----------------- subtract
- x = -7
so x = 7
21 - 2y = 1
2 y = 20
y = 10
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check
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21= 20 = 1 yes
28 - 20 = 8 yes