If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
9x2 + -9 = 81
Reorder the terms:
-9 + 9x2 = 81
Solving
-9 + 9x2 = 81
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '9' to each side of the equation.
-9 + 9 + 9x2 = 81 + 9
Combine like terms: -9 + 9 = 0
0 + 9x2 = 81 + 9
9x2 = 81 + 9
Combine like terms: 81 + 9 = 90
9x2 = 90
Divide each side by '9'.
x2 = 10
Simplifying
x2 = 10
Take the square root of each side:
x = {-3.16227766, 3.16227766}
| 2x-(5x-6)=7+(x-1) | | 20+2x=-4x-4 | | x^200=2000 | | y=2x^2-10x+18 | | 5f=41-3t-9 | | lnx-lny=4 | | 120=(5xn)+n | | 35=(t(t))+6t | | 35=(t(t))6t | | 3n+40=7(6-7n)-2 | | 450x^2=900 | | 9x+7=4x-10 | | 4x^3+2x^2-3x-6=0 | | -5(1-5x)+5(-8x-3)=-4x+8x | | 40t=60(t-1.5) | | x^2+4x-16y+4=0 | | -8y=8-6x | | 6-3-202542=x | | 4(5-3x)=26 | | -17+6-(-7)-17= | | 4x+2y-z=21 | | 3/11b+5=5 | | 3(4t+4)=(2t-5) | | 5g^2+7g-6=0 | | 5x+13=2x-2 | | 8d+d+5d+3-4d=0 | | 2=6(x-1)+4-5x | | 0=24x | | 7a+5=2a | | 7x^2-49+70=0 | | X^3-2x^2-40x-64=0 | | 2x-(5x-6)=-3(x+2) |