If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying
81y2 + -16 = 0
Reorder the terms:
-16 + 81y2 = 0
Solving
-16 + 81y2 = 0
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '16' to each side of the equation.
-16 + 16 + 81y2 = 0 + 16
Combine like terms: -16 + 16 = 0
0 + 81y2 = 0 + 16
81y2 = 0 + 16
Combine like terms: 0 + 16 = 16
81y2 = 16
Divide each side by '81'.
y2 = 0.1975308642
Simplifying
y2 = 0.1975308642
Take the square root of each side:
y = {-0.444444444, 0.444444444}
| 15x+22(x-3)=489 | | (12-3+5k)6+4k-2(k+5)= | | 6x-4(x+1)=2x+4 | | n^2+2n=3 | | 16-2t=2+2t | | 2m^2-50=0 | | r^2+12=-7r | | 12+6b=2b | | b^2+56=-15b | | 3x-2=1.2x | | 6y^4+7y^3-37y^2-8y+12=0 | | 2m+23=9m-5 | | -(8y+4)-(-7y-7)=-4 | | 3m+13=7m-3 | | 2r=18 | | 2x^2-36=0 | | 2y=-x+8 | | k^2+k-90=0 | | c^2-1c=0 | | k^3+k-90=0 | | x^3*x^5=x^2 | | 2x+3=5x-12 | | 4-12c=12c | | 5k+j=6 | | 24x^2-34x-45=0 | | 25x^2-30x+9=96 | | 3(2m-9+6m)=3m+29-7m | | 36x^2+48x+16=12 | | -16w-3=12-8w | | x^2(x+2)+4x(x+2)+3(x+2)=0 | | x^2+3=7 | | 3(3x-5)+15= |