SOLUTION: Solve for x and y simultaneously: y-x=-1 y-7=x^2+2x

Algebra.Com
Question 1070371: Solve for x and y simultaneously:
y-x=-1
y-7=x^2+2x

Answer by Boreal(15235)   (Show Source): You can put this solution on YOUR website!
y-x=-1
y-7=x^2+2x
-------------
y=x-1
x-1-7=x^2+2x
0=x^2+x+8
x=(1/2) (-1+/- sqrt (1-64)=(1/2)(-1+/- i *sqrt(63)). No real solutions.

RELATED QUESTIONS

Simultaneously solve y=x^2-2x-3 and... (answered by Fombitz)
Please help me solve for x and y simultaneously {{ y-2x+1 and... (answered by Alan3354)
Solve for x and y simultaneously x+y=2 and... (answered by Fombitz)
simultaneously equations y=-x+3 and... (answered by Alan3354)
Solve Simultaneously for x and y: 4^x(times)2^y=16 and... (answered by ewatrrr)
Solve for x and y simulteneously: y - x = -1 Y - 7 = x^2 + 2x (answered by josgarithmetic)
5^x+5^y=150, x-y=1, Solve... (answered by greenestamps)
The directions for my homework are... Solve simultaneously for x and y. the... (answered by ewatrrr)
Solve the following simultaneously [ 2 / (x+y) ] + [1 / (y-x) ] = 8 [ 1 / (x+y) ] + (answered by josgarithmetic)