What method would be best to solve this system of equations? (Addition, Subtraction, Subsitution) How would you solve it?
Please include steps, because I want to learn how to do this.

Question

What method would be best to solve this system of equations? (Addition, Subtraction, Subsitution) How would you solve it? 
Please include steps, because I want to learn how to do this.

candyme · Answer

$$2x+4y=8$$$$y-3=x$$

anonymous · Answer

Substitute x=y-3 into the top equation, i.e. Change 2x in the top eq to 2(y-3)

anonymous · Answer

y-3=x     
or x=y-3        -----(1)

put the value of x in eq (2)

i.e, 2x+4y=8
2(y-3) +4y=8
2y-6+4y=8
2y+4y=8+6
6y=14
y=14/6=7/3

put the value of y in eq (1)

x=y-3
x=7/3-3
x=7-9/3
x=-2/3

candyme · Answer

Thanks to you both, this really helped me see what I should do!