If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying -1r2 = 81 + -18r Solving -1r2 = 81 + -18r Solving for variable 'r'. Reorder the terms: -81 + 18r + -1r2 = 81 + -18r + -81 + 18r Reorder the terms: -81 + 18r + -1r2 = 81 + -81 + -18r + 18r Combine like terms: 81 + -81 = 0 -81 + 18r + -1r2 = 0 + -18r + 18r -81 + 18r + -1r2 = -18r + 18r Combine like terms: -18r + 18r = 0 -81 + 18r + -1r2 = 0 Factor a trinomial. (-9 + r)(9 + -1r) = 0Subproblem 1
Set the factor '(-9 + r)' equal to zero and attempt to solve: Simplifying -9 + r = 0 Solving -9 + r = 0 Move all terms containing r to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + r = 0 + 9 Combine like terms: -9 + 9 = 0 0 + r = 0 + 9 r = 0 + 9 Combine like terms: 0 + 9 = 9 r = 9 Simplifying r = 9Subproblem 2
Set the factor '(9 + -1r)' equal to zero and attempt to solve: Simplifying 9 + -1r = 0 Solving 9 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-9' to each side of the equation. 9 + -9 + -1r = 0 + -9 Combine like terms: 9 + -9 = 0 0 + -1r = 0 + -9 -1r = 0 + -9 Combine like terms: 0 + -9 = -9 -1r = -9 Divide each side by '-1'. r = 9 Simplifying r = 9Solution
r = {9, 9}
| 160=-16tsquared+96t+16 | | -7(n-4)n= | | (15y)2-11y+2=0 | | 180-142= | | 6(6g+2)= | | -6(-y+7)= | | x+6=2x-27 | | 3x-40x-24=24 | | 15(y)2-11y+2=0 | | 41/9-7/8 | | Tanx=7/24 | | -18x-6y=30 | | 5(m-2+4m)=5m+62-6m | | 2x=y^2-4y+6 | | 5+2(x-7)=4-8(x-1) | | 270*35=x*25 | | 3w-4w+7-2= | | Sinx=7/25 | | 7z^2-8z=0 | | 14=0.5x | | 12x=2x+13 | | 44x+2=15x+5 | | n+(n+1)+(n+2)+(n+3)=358 | | 25*x=35 | | 6+1y=3.6 | | 5r^2-35=0 | | ln(x)-ln(8-5x)=2 | | -3=-5m | | 20x+35=2(ax+9)+(4x+b) | | x*25=35*270 | | 6n-21=-25+4n | | 7-42x=21x+4 |