If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
81x2 = 169
Solving
81x2 = 169
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Divide each side by '81'.
x2 = 2.086419753
Simplifying
x2 = 2.086419753
Take the square root of each side:
x = {-1.444444444, 1.444444444}
| B=1.5(b+2)-15-(2b-9) | | 4x-20=-12 | | x^8/(x^5)^3 | | X^2-1=5*x | | -6x+7(2x-2)=42 | | 5x^2/2+3x=-5/2 | | d=24h | | Inq=3.5 | | 5x^2/2+3x+5/2=0 | | X^2+20*x+11=-8 | | x^2+15=11 | | 3(s+12)=4(s+12) | | 3x^2=13x | | -4=-7/u+6 | | 7x+4(-3x+21)=34 | | m/-8=6 | | x/6+x^2/2=2x/3 | | -4x-4(2x+30)=24 | | -8+3y=11 | | 33g-28=25g+12 | | 2x^2-24x-128=0 | | 7*2x=x-3*8 | | A=xp | | 8(x+5)=4(x+19) | | -4/7x=21.8 | | 2/(-6)^-3 | | 1/4x=1/8 | | 6x-3x+2x-3x+12= | | 5x-2=63-8x | | -3/4x=15.36 | | -4/7x=25.12 | | x+1*3=x+2*5 |