How can x + 3 = -2x + 5 be set up as a system of equations?

Question

p0sitr0n · Answer

split at equal sign
y=x+3
y=-2x+5

p0sitr0n · Answer

although theres no real point in doing it since you can solve it right away

anonymous · Answer

@P0sitr0n Thank you !!

anonymous · Answer

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the first equation is substituted into the second equation. 

-x + 5y = 1 
2x + 4y = -4

 2(-5y + 1) + 4y = -4

 2x + 4(-5y + 1) = -4

 2x + 4(5y - 1) = -4

 2(5y - 1) + 4y = -4


@P0sitr0n help ?

p0sitr0n · Answer

the last one. isolate x=5y-1, replace and voila