0.8х-3 0.6х-8.4 ____ = ________ 0.3 -9

Question

0.8х-3 0.6х-8.4

____ = ________

0.3 -9

Answer 1

-9*(0,8х-3)=0,3*(0,6х-8,4)

-7,2х+27=0,18х-2,52

-7,2х-0,18х=-2,52-27

-7,38х=-29,52

х=4

Ответ:х=4