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

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


Simplifying
9r + -12 = 3(3r + 4)

Reorder the terms:
-12 + 9r = 3(3r + 4)

Reorder the terms:
-12 + 9r = 3(4 + 3r)
-12 + 9r = (4 * 3 + 3r * 3)
-12 + 9r = (12 + 9r)

Add '-9r' to each side of the equation.
-12 + 9r + -9r = 12 + 9r + -9r

Combine like terms: 9r + -9r = 0
-12 + 0 = 12 + 9r + -9r
-12 = 12 + 9r + -9r

Combine like terms: 9r + -9r = 0
-12 = 12 + 0
-12 = 12

Solving
-12 = 12

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

See similar equations:

| 81=12x-15 | | 4(2x+3)-7=-11 | | -r+3=10 | | -5c+9=16 | | 4+1.5(z+2)=3.5z-1 | | 1-.5x=.5y | | 3.2w-2=-4.5 | | 3x^2y+9xy-54y= | | 2y-6=-10 | | 8x-2(4-2x)=7 | | 475c+25=725 | | 8a-3=11+4a | | 2(q-6)=6 | | -6t+1=3 | | -x+29=220 | | 475+25=725 | | x^2+34x-120=0 | | 725=475+25 | | 24+9x=-13 | | 189-v=246 | | 4y-(7y+3)=7(y+1)-4y | | 56=9x-7 | | 2(x+4)+8=10 | | -.25(4+8x)=10 | | 42m-1=11 | | -53x+68+2x^2+29x=0 | | 17.3-m=2.5 | | 16=-x+216 | | 42-1=11 | | 2y+15=5y | | 6.2=(.0021x^2)-(.286x)+16.28 | | k/4+8=10.3 |

Equations solver categories