Question

(3 - 2х) + (4 - 3х) + (5 - 5х) =12 + 7х

Answer 1

(3-2х)+(4-3х)+(5-5х)=12+7х
3-2х+4-3х+5-5х=12+7х
-2х-3х-5х-7х=12-3-4-5
-17х=0
х=0:(-17)
х=0
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