If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying (2r + -5) * 2 = 81 Reorder the terms: (-5 + 2r) * 2 = 81 Reorder the terms for easier multiplication: 2(-5 + 2r) = 81 (-5 * 2 + 2r * 2) = 81 (-10 + 4r) = 81 Solving -10 + 4r = 81 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + 4r = 81 + 10 Combine like terms: -10 + 10 = 0 0 + 4r = 81 + 10 4r = 81 + 10 Combine like terms: 81 + 10 = 91 4r = 91 Divide each side by '4'. r = 22.75 Simplifying r = 22.75
| 16x^2-9/4x=3=-6 | | x-2/3-x+1/5=x+1/15 | | Y/(-3)-2=9 | | x^4+1.6x-1=0 | | x^3+4x^2+6=0 | | 2(a-6)2-45=53 | | 19a-12-4a=57 | | tan=1.74 | | (3x^2-3)(4x-x)=0 | | x^2-1x-30= | | x=4(180)+30 | | 25x^2+20x-26=0 | | 3(x+8)=14-(x-6) | | 180=4x+30 | | 6b-8=-4 | | 3(2x-4)=6-2(3x+9) | | 4e^2x-1=6 | | 7x+23=4x-9 | | 3x^2-10x+48=0 | | -6+3h=12 | | 2(3c-1)-3=4c+9 | | -3(x+2)2=-18 | | 2x+1=x+25 | | 6.8=4.0/x | | 3tanx=3 | | 2=5m-23+2m | | 5(2x+3)=6(x-17)+10 | | 12m-25=4m | | 9x^2+44x+32=0 | | f(x)=1/2cos2x | | 4(x+1)2=100 | | x^2-7x-38=2x-2 |