Question

Determinati-l pe x din:
b)5-x+7=9
d) (623-295)-x=70
e) 57-(32+10+x)=10
f)200-x+375=156.

Answer 1

5-x+7=9
5-x=2
x=3

(623-295)-x=70
328-x=70
x=258

57-(32+10+x)=10
32+10+x=47
42+x=47
x=5

ultimu punct f) este gresit