Question

resolva as equaçoes.
a)5m+30
b)x-5=7
c)128+f=900
d)-7=x+50
pfv me ajudem

Answer 1

a)5m=30
m=30/5
m=6

b) x-5=7
x=7+5
x=12

c)128+f=900
f=900-128
f=772

d)-7=x+50
-7-50=x
x=-57