2(12+3r)=-9r-4(-4r-5)

Simple and best practice solution for 2(12+3r)=-9r-4(-4r-5) 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 2(12+3r)=-9r-4(-4r-5) equation: 


Simplifying
2(12 + 3r) = -9r + -4(-4r + -5)
(12 * 2 + 3r * 2) = -9r + -4(-4r + -5)
(24 + 6r) = -9r + -4(-4r + -5)

Reorder the terms:
24 + 6r = -9r + -4(-5 + -4r)
24 + 6r = -9r + (-5 * -4 + -4r * -4)
24 + 6r = -9r + (20 + 16r)

Reorder the terms:
24 + 6r = 20 + -9r + 16r

Combine like terms: -9r + 16r = 7r
24 + 6r = 20 + 7r

Solving
24 + 6r = 20 + 7r

Solving for variable 'r'.

Move all terms containing r to the left, all other terms to the right.

Add '-7r' to each side of the equation.
24 + 6r + -7r = 20 + 7r + -7r

Combine like terms: 6r + -7r = -1r
24 + -1r = 20 + 7r + -7r

Combine like terms: 7r + -7r = 0
24 + -1r = 20 + 0
24 + -1r = 20

Add '-24' to each side of the equation.
24 + -24 + -1r = 20 + -24

Combine like terms: 24 + -24 = 0
0 + -1r = 20 + -24
-1r = 20 + -24

Combine like terms: 20 + -24 = -4
-1r = -4

Divide each side by '-1'.
r = 4

Simplifying
r = 4

See similar equations:

| y=4x-3.5 | | x=m+n/p | | 2a+2c=b | | d+25=38 | | 10-k=-11 | | -135/-7=m | | 27*(x*x)= | | d-(-2)=99 | | -5=3(y-5)-8y | | 35x^2/49x | | 10+k=-11 | | R=vk+ok | | (x/8)+(9x/16)=(x/12) | | 3-11h=(12-3h) | | S-2=8 | | 5x-36+3x-22=180 | | 2x+1/2x=15 | | -0.9x+1.31=-0.4x+4.81 | | -3+24x=-27 | | x+14x-9=0 | | 22-d=(-56) | | 3x-(7)+x=5 | | S-3=18 | | 1.43*(-19/37) | | 10-7b=4-5(2b+9)+3b | | 3x(x-1)+x=-2 | | -1=5-x+2-x | | 6x+4x-48=80-6x | | -5+10y+10m-4y-2m-5= | | h=160*4-16*16 | | 3/8r=35 | | 9(n-6)=8+10n |

Equations solver categories