Question

Resolver las siguientes ecuaciones:
x-4=12
m+30=52
b+7=-13
z+3=15

Answer 1

$x - 4 = 12 \\ x = 12 + 4 \\ x = 16 \\ \\ m + 30 = 52 \\ m = 52 - 30 \\ m = 22$

$b + 7 = - 13 \\ b = - 13 + 7 \\ b = - 6 \\ \\ z + 3 = 15 \\ z = 15 - 3 \\ z = 12$

Answer 2

$x - 4 = 12 \\ \times = 12 + 4 \\ \times = 16 \: \: \: \: \: \: \\ \\ \\ espero \: te \: ayude$