If it's not what You are looking for type in the equation solver your own equation and let us solve it.
Simplifying r2 = -20 + 9r Solving r2 = -20 + 9r Solving for variable 'r'. Reorder the terms: 20 + -9r + r2 = -20 + 9r + 20 + -9r Reorder the terms: 20 + -9r + r2 = -20 + 20 + 9r + -9r Combine like terms: -20 + 20 = 0 20 + -9r + r2 = 0 + 9r + -9r 20 + -9r + r2 = 9r + -9r Combine like terms: 9r + -9r = 0 20 + -9r + r2 = 0 Factor a trinomial. (4 + -1r)(5 + -1r) = 0Subproblem 1
Set the factor '(4 + -1r)' equal to zero and attempt to solve: Simplifying 4 + -1r = 0 Solving 4 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1r = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1r = 0 + -4 -1r = 0 + -4 Combine like terms: 0 + -4 = -4 -1r = -4 Divide each side by '-1'. r = 4 Simplifying r = 4Subproblem 2
Set the factor '(5 + -1r)' equal to zero and attempt to solve: Simplifying 5 + -1r = 0 Solving 5 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + -1r = 0 + -5 Combine like terms: 5 + -5 = 0 0 + -1r = 0 + -5 -1r = 0 + -5 Combine like terms: 0 + -5 = -5 -1r = -5 Divide each side by '-1'. r = 5 Simplifying r = 5Solution
r = {4, 5}
| j(x)=2x^3-x^2-13x-6 | | 1/12=x/3-3x/4 | | 6=3x/8 | | 7k-(7+k)=-(3k+7) | | 8r-6r+2=5r-r | | -3x+17=-34 | | 6k-(5+k)=-(8k+5) | | x(2)+(x+4)2=x+(x+5)+(x+9) | | 2(r+3)=3(4r)-11 | | 4.5x+3x=1 | | 2y=9+5y(5) | | 6+3+2=n+8 | | -36+-3= | | 2y=9-5y(5) | | 18y+9(9y-4)=52 | | 16+(-6)= | | 3y-5/7 | | 12000=1180p-9p^2 | | ln(x+8)+ln(7)=4 | | 2(z+4)=3z-3 | | (6a)(5b^2)/3a^3 | | 6+y=15-4(y+1) | | 0=x^2+2x-528 | | 15p-19p=12 | | 7x-4=3+8x | | 8y+6y=112 | | 9a^2+42a+49= | | 180+0.25x=395 | | 9-3(1+5x)=-19 | | (2u^6/6v^4)^3 | | -18+x=43 | | 2x-8(9-x)=9 |