(y + 1): 4 = (x + 2): 3 2x-3y = 1, find the solution of X and y

（y+1)：4=（x+2)：3
3(y+1)=4(x+2)
3y+3=4x+8
4x-3y=-5 (1)
2x-3y=1 (2)
(1)-(2)
2x=-6
therefore
x=-3
y=(4x+5)/3=-7/3

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