18=m-(-21)

Simple and best practice solution for 18=m-(-21) 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 18=m-(-21) equation: 



18=m-(-21)

We move all terms to the left:

18-(m-(-21))=0



We calculate terms in parentheses: -(m-(-21)), so:

m-(-21)

We add all the numbers together, and all the variables

m+21

Back to the equation:

-(m+21)



We get rid of parentheses

-m-21+18=0

We add all the numbers together, and all the variables

-1m-3=0

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

-m=3

m=3/-1

m=-3

See similar equations:

| 65/2=20/x | | 7(4n)+5=63 | | 65/2=20x | | 5(2w-3)=25 | | 15x^2-21x-72=0 | | x-4.83=-4.75 | | -2.6b+4=09b-17 | | 4x−7=−19 | | a-14=30 | | 8^x+3=20 | | 0=(2y^2)-34y+60 | | 5+m=-17 | | 8x+39=9x+7 | | -3x-9=-27x= | | -58=14-8d | | 1.5x+1.75=10 | | 4(2+w)=5(w+1)+w-1 | | x2−3x+1=−1 | | 4+2w=5(w+1)+w-1 | | 10-5y=40 | | f-(-19)=11f+23-20ff= | | x-(-19)=11 | | 5x+10=11x+8 | | H(x)=6x^2=+384 | | -24-10k=-8(k+4)-2kk= | | -15-6=12x-114 | | 3.5-13+27=3.5(x+4) | | |x|-2=1 | | -6-5x=-2x-14 | | 4-12x=25-5x | | 2=6s-8s | | 6–2x=5x+20 |

Equations solver categories