Question

resolva as equações
j) 48 + x = 72
k) x + 50 = -7
n) 10x – 5 = 15

Answer 1

j) 48 + x = 72

x= 72-48

x=24

k) x + 50 = -7

x= -7-50

x= -57

n) 10x – 5 = 15

10x= 15+5

10x= 20

x= 20÷10

x= 2

Boa sorte

:-)