Question

(2x-60)-40=x-10

уравнение,35 баллов

Answer 1

2x-x=-10+60+40
x=50+40
x=90

Answer 2

2x-x=-10+60+40
x=50+40
x=90

Answer 3

$2x - 60 = x + 30 \ x = 30 + 60 \ x = 90$