Пошаговое объяснение:
12х+1/4–3х=50/–4
12х+0.25–3х=-12.5
12х-3х=-12.5-0.25
9х=-12.75
х=-12.75:9
х=-12 3\4:9
х=-51\4*1\9
х=-51\36=-1 5\12
Пошаговое объяснение:
12х+1/4–3х=50/–4
12х+0.25–3х=-12.5
12х-3х=-12.5-0.25
9х=-12.75
х=-12.75:9
х=-12 3\4:9
х=-51\4*1\9
х=-51\36=-1 5\12