Объяснение:
-4у=12
у=12:(-4)
у=-3
(1) 3х-8×(-3)=18
3х+24=18
3х=18-24
3х=-6
х=-6:3
х=-2
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Объяснение:
-4у=12
у=12:(-4)
у=-3
(1) 3х-8×(-3)=18
3х+24=18
3х=18-24
3х=-6
х=-6:3
х=-2