Question

(X+200) : 20 =45
(320 + x) x 15=5.100
7 x (15 x x+35 x x):10+2 x x=185
Determinati nr naturale care verfica egalitatile

Answer 1

x+200 = 20x45
x+200 = 900
x=900-200
x= 700

320+x=5100:15
320+x= 340
x=340-320
x=20



7x (50x) :10 +2x =185
7x 5x +2x =185
37x x =185
x=185:37
x= 5