(1+2/7)x=754这道题怎么做
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(1+2/7)x=754这道题怎么做
(1+2/7)x=754这道题怎么做
(1+2/7)x=754这道题怎么做
(1+2/7)x=754
(7/7+2/7)x=754
9/7x=754
x=754乘7/9
=5278/9
=586.4444444
9/7x=754
x=754*7/9=5278/9=586.4444444
望采纳,谢谢