Question

exercițiul încercuit cu rosu

Answer 1

a) 2x=36+72
2x=108
2x=108:2
x=54

b)3×=27+81
3×=108
x=108:3
×=36
c)15×=3+3
15×=6
×=6:15
x=2r1
d) 35×=51+19
35×=70
×=70:35
x=2
e)4×=228-28
4×=200
x=200:4
x=50
f)2x=35+37
2x=72
x=72:2
x=36
g)5x=10+20
5x=30
x=30:5
X=6
H)100x=1000+2500
100x=3500
x=3500:100
x=35