-7х+4=2х-14 б)2.3-2*(х-3дробь4)=1.6 в)3(у-5)-2(у-4)=8

Question

-7х+4=2х-14 б)2.3-2*(х-3дробь4)=1.6 в)3(у-5)-2(у-4)=8

Answer 1

В)3(y-5)-2(y-4)=8
3y-15-2y+8=8
3y-2y=8+15-8
y=15

Comments

a)-7x+4=2x-14

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-7x-2x=-14-4

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-9x=-18

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x=-18/-9

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x=2

Answer 2

А)-7х+4=2х-14
-9х=-18
х=2
в)3у-15-2у+8-8=0
у=15