Question

REZOLVATI ECUATIIILE :
-5+x=8 ;
2x-43=-53 ;
-5*(-7+x)=65 ;
81:(-4+x )=3

Answer 1

5+x=8
x=8-5
x=3

2x-43=53
2x=53+43
2x=96
x=96:2
x=48

5*(7+x)=65
(7+x)=65:5
(7+x)=13
x=13-7
x=6

81:(4+x)=3
(4+x)=81*3
(4+x)=243
x=243-4
x=239