Question

ecuaciones ayudenmen
8.M+7=71
15.b+30=60
2.b+35=53
6.Z+28=64

Answer 1

1. 8M+7=71
8M = 71-7
8M=64
M=64/8
M=8

Comprobación
8M+7=71
8(8)+7=71
64+7=71
71=71

2. 15b+30=60
15b=60-30
15b=30
b=30/15
b=2

Comprobación
15b+30=60
15(2)+30=60
30+30=60
60=60

3. 2b+35=53
2b=53-35
2b=18
b=18/2
b=9

Comprobación
2b+35=53
2(9)+35=53
18+35=53
53=53

4. 6Z+28=64
6Z=64-28
6Z=36
Z=36/6
Z=6

Comprobación
6Z+28=64
6(6)+28=64
36+28=64
64=64