2-7х 4х+7 х _____+______=- ___ плз 6 3 2
Решите задачу:
2-7х 4х+7 х ------- + -------- = - -------- /*6 6 3 2 2-7х+2*(4х+7)= -3х 2-7х+8х+14= -3х -7х+8х+3х=-2-14 4х= -16 х= -16:4 х=-4