(16x=2x)*0.7=18

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(16x=2x)*0.7=18

(16x=2x)*0.7=18
(16x=2x)*0.7=18

(16x=2x)*0.7=18
(16x+2x)×0.7=18
18x×0.7=18
7/10x=1
x=10/7

(16x+2x)×0.7=18
18x×0.7=18
7/10x=1
x=10/7