Question

4x=3-3y
x=1-y metodo de sustitucion
​

Answer 1

Respuesta:

4x=3-3y

x=1-y

4(1-y)=3-3y

4-4y=3-3y

4y-3y=3-4

y=-1

x=1-y

x=1--1

x=1+1

x=2