Question

Resolva:
a)2(x+1)=12
b)2x+1=12
c)5.2x+4=30

Quero as contas pf!!!me ajudem e pra amanha e vale nota!!!

Answer 1

a) 2(x+1)=12
2x+2=12
2x=12-2
x=10/2
x=5

b) 2x+1=12
2x=12-1
2x=11
x=11/2

c) 5.2x+4=30
10x+4=30
10x=30-4
10x=26
x=26/10
x=13/5