how would i solve this system of equations algebraically? x^2+y=4 and x+y=2?

Question

how would i solve this system of equations algebraically?  x^2+y=4 and x+y=2?

unklerhaukus · Answer

take the difference of the equations, 
note that it has no y term,
 solve for x and then substitute
 back in one of the original equations to solve for y

anonymous · Answer

stupid of me, got my math final later today, math overload..... ty

marco26 · Answer

get the value of y in terms of x in the equation x+y=2 and substitute it into the second equation x^2+y=4,,you will be able to get x. Substitute in that value of x in any of the two equation and you'll get y

anonymous · Answer

$$x+y=2$$
$$y=2-x$$
plug in this in first equation and solve for x :D