1) No solution
2x-12=x^2+x
Subtract -2x from both sides.
-12=x^2-x
Add 12 to both sides.
0=x^2-x+12
If you were to do the umbrella method there is no other way to simplify this expression.
2) 10/3
3.5x=20-2.5x
Add 2.5x to both sides.
6x=20
Divide 6 to both sides.
10/3=x
