Question

Equação de 1 grau
4a+3x=12a+x

Answer 1

4a+3x= 12a+x
3x-x = 12a-4a
2x = 8a
x= 8a/2
x= 4a

4a+3x= 12a+x
4a+3.4a= 12a+4a
4a+12a= 16a
16a= 16a
a= 16/16
a= 1

Answer 2

4a+3x=12a+x

3x-x=12a-4a

2x=8a

x=8a/2

x=4a

4a+3.(4a)=12a+4a

4a+12a=16a

16a=16a

a=1

espero ter ajudado!

boa noite!