r^2+r-6=2r

Simple and best practice solution for r^2+r-6=2r 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 r^2+r-6=2r equation:


Simplifying
r2 + r + -6 = 2r

Reorder the terms:
-6 + r + r2 = 2r

Solving
-6 + r + r2 = 2r

Solving for variable 'r'.

Reorder the terms:
-6 + r + -2r + r2 = 2r + -2r

Combine like terms: r + -2r = -1r
-6 + -1r + r2 = 2r + -2r

Combine like terms: 2r + -2r = 0
-6 + -1r + r2 = 0

Factor a trinomial.
(-2 + -1r)(3 + -1r) = 0

Subproblem 1

Set the factor '(-2 + -1r)' equal to zero and attempt to solve: Simplifying -2 + -1r = 0 Solving -2 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + -1r = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -1r = 0 + 2 -1r = 0 + 2 Combine like terms: 0 + 2 = 2 -1r = 2 Divide each side by '-1'. r = -2 Simplifying r = -2

Subproblem 2

Set the factor '(3 + -1r)' equal to zero and attempt to solve: Simplifying 3 + -1r = 0 Solving 3 + -1r = 0 Move all terms containing r to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + -1r = 0 + -3 Combine like terms: 3 + -3 = 0 0 + -1r = 0 + -3 -1r = 0 + -3 Combine like terms: 0 + -3 = -3 -1r = -3 Divide each side by '-1'. r = 3 Simplifying r = 3

Solution

r = {-2, 3}

See similar equations:

| 3-2x+5=8x-25 | | ln(x)=9.9 | | -352/-11 | | (10x-20)+(x+15)+(x+5)= | | 5x^3-125=0 | | 2-4x=-1 | | 20+1.50x= | | 20+1.50= | | 8=(-.75)(-.75)+b | | 8lnx=5 | | (x-5)(7x+6)=0 | | a-3r/1-r | | 4m^2+17m+18= | | y=2sinx+2cosx | | y+2=2(x+4)-2x | | Y-.75Y=500 | | x*1.5=290 | | x*1.5=300000000 | | 9x-99=5x-35 | | 0.5x(8+20)=280 | | 18r=306 | | 0=-1-x-1/3y | | 4.3y=38.7 | | -37=3x+11-7y | | f(x)=4/3x^1/3 | | 2y-4x=-2(2x+7) | | (X+5)(x+5)=39 | | 13.50=.10m | | 7y-2=3y+2 | | 5(11.67)+y=35 | | (a+2)(a-3)=-2a | | 21.90=.15m |

Equations solver categories