Question 547793
4x+3y=4



4x+3(2x-7)=4



4x+6x-21=4



10x-21=4



10x=4+21



10x=25



x=25/10



x=5/2

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y=2x-7



y=2(5/2)-7



y=5-7



y=-2



So the solutions are x = 5/2 and y = -2