Question

решить уравнение
2(х+1)-8 = х+4

8(2х-3)+7 = 4(2-х)-1

7/9х + 4 = 2/3х+8

х+8/3 = 2х-1/5

Answer 1

1) 2х+2-8=х+4
х=10
2) 16х-24+7=8-4х-1
20х=24
х=1,2
3) 4/9
4) 43