-3(2m-4)=21

Simple and best practice solution for -3(2m-4)=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(2m-4)=21 equation:


Simplifying
-3(2m + -4) = 21

Reorder the terms:
-3(-4 + 2m) = 21
(-4 * -3 + 2m * -3) = 21
(12 + -6m) = 21

Solving
12 + -6m = 21

Solving for variable 'm'.

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

Add '-12' to each side of the equation.
12 + -12 + -6m = 21 + -12

Combine like terms: 12 + -12 = 0
0 + -6m = 21 + -12
-6m = 21 + -12

Combine like terms: 21 + -12 = 9
-6m = 9

Divide each side by '-6'.
m = -1.5

Simplifying
m = -1.5

See similar equations:

| 6x/7x-49 | | -1/4(12x-16)= | | b^2-14b=-48 | | b^2-14b=48 | | -384=-16m | | 6x-6=6x+54 | | 2=3+x^2 | | -6-2t=-1t-1 | | -4/7÷3/14 | | 450=25(h) | | 36/m=3 | | 8=9+x^2 | | 2(-2)+y=-3 | | 4-5x-7x+16= | | 4y+23=36 | | Log[4](2x-6)=3 | | (3x+60)=360 | | X-5/4-1=x-4/3 | | 3z/8=16 | | y/-8=0 | | 3(3x+4)+6(x-1)= | | 2ax+2b=2c | | b/-7=-40 | | 40-5x=70 | | 0=x^3+0.5x^2+8+x | | 2z=7 | | cos(x)+cos^2(x)-sin^2(x)=0 | | x+3x+6x-4=180 | | 10=4(a-2) | | 6(8x-5)+11x= | | X/9-5=7 | | 3+-2x=5 |

Equations solver categories