12(r+1)-(r^2-1)(r+1)=2r^2-2

Simple and best practice solution for 12(r+1)-(r^2-1)(r+1)=2r^2-2 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 12(r+1)-(r^2-1)(r+1)=2r^2-2 equation: 


Simplifying
12(r + 1) + -1(r2 + -1)(r + 1) = 2r2 + -2

Reorder the terms:
12(1 + r) + -1(r2 + -1)(r + 1) = 2r2 + -2
(1 * 12 + r * 12) + -1(r2 + -1)(r + 1) = 2r2 + -2
(12 + 12r) + -1(r2 + -1)(r + 1) = 2r2 + -2

Reorder the terms:
12 + 12r + -1(-1 + r2)(r + 1) = 2r2 + -2

Reorder the terms:
12 + 12r + -1(-1 + r2)(1 + r) = 2r2 + -2

Multiply (-1 + r2) * (1 + r)
12 + 12r + -1(-1(1 + r) + r2(1 + r)) = 2r2 + -2
12 + 12r + -1((1 * -1 + r * -1) + r2(1 + r)) = 2r2 + -2
12 + 12r + -1((-1 + -1r) + r2(1 + r)) = 2r2 + -2
12 + 12r + -1(-1 + -1r + (1 * r2 + r * r2)) = 2r2 + -2
12 + 12r + -1(-1 + -1r + (1r2 + r3)) = 2r2 + -2
12 + 12r + -1(-1 + -1r + 1r2 + r3) = 2r2 + -2
12 + 12r + (-1 * -1 + -1r * -1 + 1r2 * -1 + r3 * -1) = 2r2 + -2
12 + 12r + (1 + 1r + -1r2 + -1r3) = 2r2 + -2

Reorder the terms:
12 + 1 + 12r + 1r + -1r2 + -1r3 = 2r2 + -2

Combine like terms: 12 + 1 = 13
13 + 12r + 1r + -1r2 + -1r3 = 2r2 + -2

Combine like terms: 12r + 1r = 13r
13 + 13r + -1r2 + -1r3 = 2r2 + -2

Reorder the terms:
13 + 13r + -1r2 + -1r3 = -2 + 2r2

Solving
13 + 13r + -1r2 + -1r3 = -2 + 2r2

Solving for variable 'r'.

Reorder the terms:
13 + 2 + 13r + -1r2 + -2r2 + -1r3 = -2 + 2r2 + 2 + -2r2

Combine like terms: 13 + 2 = 15
15 + 13r + -1r2 + -2r2 + -1r3 = -2 + 2r2 + 2 + -2r2

Combine like terms: -1r2 + -2r2 = -3r2
15 + 13r + -3r2 + -1r3 = -2 + 2r2 + 2 + -2r2

Reorder the terms:
15 + 13r + -3r2 + -1r3 = -2 + 2 + 2r2 + -2r2

Combine like terms: -2 + 2 = 0
15 + 13r + -3r2 + -1r3 = 0 + 2r2 + -2r2
15 + 13r + -3r2 + -1r3 = 2r2 + -2r2

Combine like terms: 2r2 + -2r2 = 0
15 + 13r + -3r2 + -1r3 = 0

The solution to this equation could not be determined.

See similar equations:

| 4n+2n=252 | | x-9.4=-3.6 | | 4x-3x+7=2(x-5) | | 3v+4(6v+4)=151 | | 11x=72+8y | | -11+(-4)=0 | | y(y+5)=y-15 | | 18-2n=10 | | f(0)=3x-12 | | 63=5x+2(x+7) | | f(0)=ex-12 | | 8+7x=20+x | | 30-27x=64x+128 | | 10+9n=81 | | -5(3-4p)=65 | | 8+3x=15x-6 | | 5p+9(6p-8)= | | -16x-14+13x+26=0 | | -2n+6(2-5n)=39-5n | | 6w^2-8w+5=0 | | 5x-5x+6y=-5x+30 | | 5x+5(x-18)=30 | | 5x^2-41x+78=0 | | 1+1p=-5-p | | 7s^2+9s-4=0 | | 11r+13-r^3-r^2=0 | | 2=x+6+2x | | 5x+20=-22-3x | | 3n+wr=r-8f | | 6x+2(2x+5)=130 | | -2+5b= | | ln(x-9)=ln(2x-9) |

Equations solver categories