问题
解答题
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答案
(1)8(2X-7)=5(X+13),
16x-56=5x+65,
16x-56-5x=5x+65-5x,
11x-56=65,
11x-56+56=65+56,
11x=121,
11x÷11=121÷11,
x=11,
(2)3(x+4.5)=60,
3(x+4.5)÷3=60÷3,
x+4.5=20,
x+4.5-4.5=20-4.5,
x=15.5.
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(1)8(2X-7)=5(X+13),
16x-56=5x+65,
16x-56-5x=5x+65-5x,
11x-56=65,
11x-56+56=65+56,
11x=121,
11x÷11=121÷11,
x=11,
(2)3(x+4.5)=60,
3(x+4.5)÷3=60÷3,
x+4.5=20,
x+4.5-4.5=20-4.5,
x=15.5.