81r^2=49

Simple and best practice solution for 81r^2=49 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 81r^2=49 equation: 


Simplifying
81r2 = 49

Solving
81r2 = 49

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Divide each side by '81'.
r2 = 0.6049382716

Simplifying
r2 = 0.6049382716

Take the square root of each side:
r = {-0.777777778, 0.777777778}

See similar equations:

| -3x-10i=-12+5yi | | 36g=-81-4g^2 | | -5-x-7x=19 | | 1-2logx=0 | | -56=x+5x+4 | | -7-6x+4x=-9 | | 2/17=?/51 | | 5(x-40)=2(x-40) | | 25b^2-3=-2 | | 32-3-3=0 | | 280x2/3 | | 95j^2+85j-10=0 | | 9x+2=-43 | | X-0.25x=15.00 | | 10/21n | | 2d^2+24d+72=0 | | R=a+(k-1)d | | 2n+7=-5-2n | | 5/12=5-11/12 | | 2/3m=90 | | 2/9×275/32×2/5 | | 45u^2-72u-36=0 | | -6+2x=-x+0 | | 79x=6x-7y+4y | | 25b=b+126 | | -17=16-x+18 | | -6+3x=-x+0 | | 18*(3x)-8*(2x)=56+50x | | 2=1/6(-m-5) | | 14+8x-13=3(x-4)+3 | | (5x+1)=(8x-14) | | 98q^2+56q+8=0 |

Equations solver categories