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Mathematics, 28.10.2020 05:10 arod20061

Using substitution- show you steps X-2y=-25
3x-y=0

y=x+4
2x+y=19

-3a+b=4
-9a+5b=-1

m+2n=1
5m+3n=-23

5c+3d=11
5c-d=5

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Using substitution- show you steps X-2y=-25
3x-y=0

y=x+4
2x+y=19

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