题目内容
解下列方程.
x+36=187;
x-12.7=2.7;
9x=6.3.
x+36=187;
x-12.7=2.7;
9x=6.3.
(1)x+36=187
x+36-36=187-36
x=151;
(2)x-12.7=2.7
x-12.7+12.7=2.7+12.7
x=15.4;
(3)9x=6.3
9x÷9=6.3÷9
x=0.7.
x+36-36=187-36
x=151;
(2)x-12.7=2.7
x-12.7+12.7=2.7+12.7
x=15.4;
(3)9x=6.3
9x÷9=6.3÷9
x=0.7.
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