解方程组,4x-4y=3(1-y)+2 3x+2y=11
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解方程组,4x-4y=3(1-y)+2 3x+2y=11
解方程组,4x-4y=3(1-y)+2 3x+2y=11
解方程组,4x-4y=3(1-y)+2 3x+2y=11
4x-4y=3(1-y)+2
4x-y=5 (1)
3x+2y=11 (2)
(1)×2+(2)
8x+3x=10+11
11x= 21
所以
x=21/11
y=4x-5=29/11
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