Question

решить уравнение 90+y*8=154.  9x+50=86 . 120:(x-19)=6

Answer 1

1) 9x+50=86
9x=86-50
9x=36
X=36:9
X=4
2)120:(х-19)=6
Х-19=120:6
Х-19=20
Х=20+19
Х=39

Answer 2

1. 90+8y=154. 8y=154-90. 8y=64 y=8. 2.9x=86-50=36 x=4.