Question

решите уравнение
3(4x+13)-25=74
5(8x+3)-12=83

Answer 1

1) 12x+39-25=74

12x=74-39+25

12x=10

x=10/12

x=1.2

2)40x+15-12=83

40x=83-15+12

40x=80

x=40/80

x=0.5