Question

найдитекорень уравнения: 7=6-0,2x 0,15x+6=51 -0,7x+2=65

Answer 1

6-0.2х=7 -0.2х=1 х=1/-0.2 х=-5 0.15х+6=51 0.15х=45 х=300 -0.7х+2=65 -0.7х=63 х=-90