21-4m=-7(m-6)

Simple and best practice solution for 21-4m=-7(m-6) 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 21-4m=-7(m-6) equation:


Simplifying
21 + -4m = -7(m + -6)

Reorder the terms:
21 + -4m = -7(-6 + m)
21 + -4m = (-6 * -7 + m * -7)
21 + -4m = (42 + -7m)

Solving
21 + -4m = 42 + -7m

Solving for variable 'm'.

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

Add '7m' to each side of the equation.
21 + -4m + 7m = 42 + -7m + 7m

Combine like terms: -4m + 7m = 3m
21 + 3m = 42 + -7m + 7m

Combine like terms: -7m + 7m = 0
21 + 3m = 42 + 0
21 + 3m = 42

Add '-21' to each side of the equation.
21 + -21 + 3m = 42 + -21

Combine like terms: 21 + -21 = 0
0 + 3m = 42 + -21
3m = 42 + -21

Combine like terms: 42 + -21 = 21
3m = 21

Divide each side by '3'.
m = 7

Simplifying
m = 7

See similar equations:

| 2/3y-9=x | | 15x-1=14x-18 | | (3-w)(5w-1)=0 | | 2x-(x-7)=6.2 | | 123356789=1 | | 1=1.654/x | | 2x+7+3x=5x-4 | | 2x+7+3x=5x-7 | | 1+3n=-5 | | (7+p)+13= | | -20-2b=-2(4b+2)+4b | | 142=-8b+6 | | 105+105+3x=180 | | 105+105+3y=360 | | -77=3-10a | | 7(2-x)=8(4-2x) | | t(x)=4x | | -2(11x+4)=-x-8(1-x) | | 4ln(x+2)=24 | | 105+105+3x=360 | | 0.5x+11.4=0.6+9.9 | | 1=4/x | | g-1(4)= | | -14=13-9c | | 0.005x-0.0008= | | h-1(x)= | | 5x-17=40 | | h-19(x)= | | 5y-4(y-3)+2=14 | | -4-(1+8x)=16-5x | | .40x+12.5=.25x+14.75 | | 2(y-7)-6=20 |

Equations solver categories