Question

(X+15)×10-100:5+90=100 Afla ce valoare are X

Answer 1

(x+15) ×10 -20=100-90
(x+15)×10=10+20
(x+15) = 30:10
x+15 = 3
x=3-15
x=-12

Answer 2

(x+15)×10-100:5+90=100
(x+15)×10-20=100-90
(x+15)×10=10+20
x+15=30:10
x=3-15
x=-12
P:(-12+15)×10-100:5+90=100
3×10-20+90=100
30-20+90=100
100=100