3(m+3)=21

Simple and best practice solution for 3(m+3)=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 3(m+3)=21 equation: 


Simplifying
3(m + 3) = 21

Reorder the terms:
3(3 + m) = 21
(3 * 3 + m * 3) = 21
(9 + 3m) = 21

Solving
9 + 3m = 21

Solving for variable 'm'.

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

Add '-9' to each side of the equation.
9 + -9 + 3m = 21 + -9

Combine like terms: 9 + -9 = 0
0 + 3m = 21 + -9
3m = 21 + -9

Combine like terms: 21 + -9 = 12
3m = 12

Divide each side by '3'.
m = 4

Simplifying
m = 4

See similar equations:

| 3=-2/5-2+b | | -12=x+x+3+6 | | kx^2+4k-36=0 | | 4(n+9)-(8n-9)=-5n | | ax-3=6x-b | | 2x-10y=14 | | 8(c+8)=7c-2 | | x^2+3x-5=4x-3 | | 3z+4-z=5+z+8 | | 2x+x=56 | | -[5z-(9z+10)]=10+(3z+4) | | 3(x-6)=6+4x | | 4n-2= | | 4x-5=7x-4x | | -3y+5y+4=-6 | | 28+24x=42+17x | | 4(6-2x)=5(4-x)-2x | | 14=0.5(n+6)*(n+6)-12 | | 4(n+9)=44 | | 5x-11=7x-5 | | 14=0.5(n+6)x(n+6)-12 | | a+6b=56 | | 2sin(2x)=3cos(x) | | 2+6x=6+2x | | 8(5x+3)+7(4+2x)=50 | | k-3(2-4k)=7-(8k-9+k) | | 3(x-15)-6x=-6(x-3) | | 8(5x+3)+7(4+2x)=24 | | 32x-5(3x)-4=0 | | 2(m-3)=5(m+8)-19 | | a^80=2 | | 6a+12=a-8 |

Equations solver categories