1) 8х+12=5х+3 2) 3(2х+1)+7=4 3) 6+3(5х-7)=4х+7 4) 3(7х-4)-4(6х+5)=х 5) 3х-5(2х+3)-6(5х-4)=-28 6) 3(х+21)+2(х-4)=5(х+11)

Question

Алгебра: 1) 8х+12=5х+3 2) 3(2х+1)+7=4 3) 6+3(5х-7)=4х+7 4) 3(7х-4)-4(6х+5)=х 5) 3х-5(2х+3)-6(5х-4)=-28 6) 3(х+21)+2(х-4)=5(х+11)

rgn123 · Answer

1)8х-5х=3-123х=-9х=-32) 6х+3 +7=46х=4-3-7х=0Нет решения3)6+15х-21=4х+715х-4х=7-6+2111х=22х=24)21х-12-24х+20=х21х-24х-х=12-20-4х=-8х=-25)3х-10х+15-30х-24=-283х-10х-30х=-28-15+24-37х=-19х=-19/376)3х+63+2х-8=5х+553х+2х+5х=55-63+8нет решения...

1) 8х+12=5х+3 2) 3(2х+1)+7=4 3) 6+3(5х-7)=4х+7 4) 3(7х-4)-4(6х+5)=х 5) 3х-5(2х+3)-6(5х-4)=-28 6) 3(х+21)+2(х-4)=5(х+11)

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