问题
解答题
解方程: (1)4x-3(5-x)=6; (2)
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答案
(1)4x-3(5-x)=6,
4x-15+3x=6,
x=21;
(2)
-2x+1 3
=1.5x-1 6
2(2x+1)-(5x-1)=6,
4x+2-5x+1=6,
-x=3,
x=-3.
解方程: (1)4x-3(5-x)=6; (2)
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(1)4x-3(5-x)=6,
4x-15+3x=6,
x=21;
(2)
-2x+1 3
=1.5x-1 6
2(2x+1)-(5x-1)=6,
4x+2-5x+1=6,
-x=3,
x=-3.