Question

punctele a);b);c);d)

Answer 1

A) x=17
B) x=8
C) x=9
D) x=4

Answer 2

A) 91-x=74
91-74=x
X=17
Verificare
91/100-17/100=74/100
74/100=74/100

B)x+1=9
X=9-1
X=8

C)12-x=3
12-3=x
X=9

D)x+1=5
X=5-1
X=4.