问题 解答题
解方程.
X-34=2006X+7X=65014×70-5X=800.
答案

(1)X-34=200,

X-34+24=200+34,

X=234;

(2)6X+7X=650,

13X=650,

13X÷13=650÷13,

X=50;

(3)14×70-5X=800,

980-5X=800,

980-5X+5X=800+5X,

980=800+5X,

980-800=800+5X-800,

5X=180,

5X÷5=180÷5,

X=36.

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