-7/15х+2/3х=-7/15х+10/15х=3/15х=1/5х=0,2х
((30 - 21) / 45)x = (9/45)x = (1/5)x = 0.2x
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Verified answer
-7/15х+2/3х=-7/15х+10/15х=3/15х=1/5х=0,2х
Verified answer
((30 - 21) / 45)x = (9/45)x = (1/5)x = 0.2x