Question 388145
first rewrite the 2nd equation in standard form that is -4y-3x=-36
rewrite 1st equation in standard form that is 4y-7x=-4

since now we have one 4y positive and one negative we can use addition to eliminate x
4y-7x=-4
-4y-3x=-36
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0-10x=-40
    x=-40/-10=4

substitute x=4 in either of the equation to solve for y . i'm using 1
4y-7x=-4
4y-7(4)=-4
4y=-4+28
y=24/4=6

thus x=4 and y=6