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OpenStudy (anonymous):
use the method of substitution and solve these two equations 2x-y=3 7x-3y=11 I got an answer but it just doesn't look right
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OpenStudy (ajprincess):
Can u plz post ur workings?
OpenStudy (anonymous):
7x-3(3-2x)=11 7x-9-6x=11 7x+9-9-6x=11+9 x=21 y=3-2x
OpenStudy (anonymous):
y=3-2(21) y=-42
OpenStudy (ajprincess):
2x-y=3 2x-3=y Nw substitute this and u will get t right.
OpenStudy (anonymous):
so the answer would be (21,39)
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OpenStudy (ajprincess):
|dw:1348414160361:dw||dw:1348414214494:dw|
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