2/5(X+3)=3/2X-2/3（X-7） 1.2y-1/0.3-1-y/0.6=y
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2/5(X+3)=3/2X-2/3（X-7）1.2y-1/0.3-1-y/0.6=y2/5(X+3)=3/2X-2/3（X-7）1.2y-1/0.3-1-y/0.6=y2/5(X+3)=3/2X-2/
2/5(X+3)=3/2X-2/3（X-7） 1.2y-1/0.3-1-y/0.6=y
2/5(X+3)=3/2X-2/3（X-7） 1.2y-1/0.3-1-y/0.6=y
2/5(X+3)=3/2X-2/3（X-7） 1.2y-1/0.3-1-y/0.6=y
2/5(x+3)=3/2x-2/3(x-7)
12(x+3)=45x-20(x-7)
12x+36=45x-20x+140
12x-25x=140-36
-13x=104
x=-8
1.2y-1/0.3-1-y/0.6=y
2(1.2y-1)-(1-y)=0.6y
2.4y-2-1+y-0.6y=0
2.8y=3
y=30/28
y=15/14
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