3m-21=4m-8(1m+7)

Simple and best practice solution for 3m-21=4m-8(1m+7) 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 3m-21=4m-8(1m+7) equation: 



3m-21=4m-8(1m+7)

We move all terms to the left:

3m-21-(4m-8(1m+7))=0

We add all the numbers together, and all the variables

3m-(4m-8(m+7))-21=0



We calculate terms in parentheses: -(4m-8(m+7)), so:

4m-8(m+7)

We multiply parentheses

4m-8m-56

We add all the numbers together, and all the variables

-4m-56

Back to the equation:

-(-4m-56)



We get rid of parentheses

3m+4m+56-21=0

We add all the numbers together, and all the variables

7m+35=0

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

7m=-35

m=-35/7

m=-5

See similar equations:

| -5(2n-6)=110 | | 3x-8=10+-2x | | 6y-13=21 | | 9x-4+52=16x+6 | | 5x+-4=-2x-1 | | -1=9/2h | | 15+.75=e | | 110=-2(1-7x) | | -n-7=1+4n-4n | | -5r=-3r-16 | | 4c=3/5 | | |x+2|=|x-6| | | 3x+12=2x-4x+32 | | y=81(91) | | -7(3+x)=91 | | 5x+150=10+13x | | -7z+12=-20z+12z-6 | | 20x30=280 | | 2.3x+5=4x–11 | | -5n-7=-4n+4(-2n-7) | | (6x+3)=75 | | 40x=5x+4 | | 5x+14+54=180 | | 8×15p=7-12p | | -3(x-6)=18-3x | | -1+10c=9c-18 | | 6h-3.5=8.5 | | 13-v=14 | | 5(8m-3)+5=150 | | 8x+5+122=5+20x | | 5x-3+7x=21 | | -3=-8(1+3p)+3(8p-6) |

Equations solver categories