Question

0,7(5х+2)-9(2х-1)=17,54-0,5х СРОЧНО!
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Answer 1

0,7(5х+2)-9(2х-1)=17,54-0,5х
3,5х+1,4-18х+9=17,54-0,5х
3,5х-18х+0,5х=17,54-1,4-9
-14х = 7,14
х = -7,14 / 14
х=-0,51