Question

x-3 =3-x

2x+3-4x=18

2(x-4)+4 a la segunda=10

Answer 1

x-3=3-x
2x=6
x=3

2x+3-4x=18
-2x+3=18
-2x=15
x=-7.5

2(x-4)+4^2=10
2x-8+16=10
2x+8=10
2x=2
x=1