-15=-3(r+9)

Simple and best practice solution for -15=-3(r+9) 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 -15=-3(r+9) equation: 



-15=-3(r+9)

We move all terms to the left:

-15-(-3(r+9))=0



We calculate terms in parentheses: -(-3(r+9)), so:

-3(r+9)

We multiply parentheses

-3r-27

Back to the equation:

-(-3r-27)



We get rid of parentheses

3r+27-15=0

We add all the numbers together, and all the variables

3r+12=0

We move all terms containing r to the left, all other terms to the right

3r=-12

r=-12/3

r=-4

See similar equations:

| 12=6+n/3 | | -2k+6=-16 | | -23=38+y | | 2n=3.7 | | 0.8=x/8.2 | | -0.75x^2+150=0 | | -2.5k=-8.75 | | 100-2x=100x | | 15.92n=39.8 | | -9.4r=-171.08 | | -0.015x^2-x+250=0 | | 99=3=6x | | 14x+9=5x+63 | | 12x=135-15x | | 33/4x=17.05 | | r/4+9=21r= | | 20/32=5/8-30/t | | 7d+26=54 | | 6t+100=154 | | 6t+100=1543 | | 38-18x=193-x | | 4(y-4=20 | | 10w=10.000 | | 108/2p+14=17 | | 14+72/4k=17 | | 2x-15=3x-50 | | x-32=80-32 | | 9x8x=65 | | 5.1=a-0.10+(30) | | 0.5(10x+14)=4.3(0.2x+5) | | -1.4x=6(x+2.19) | | 5.98x+1=35.7604+x |

Equations solver categories