21=3w-9

Simple and best practice solution for 21=3w-9 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=3w-9 equation:


Simplifying
21 = 3w + -9

Reorder the terms:
21 = -9 + 3w

Solving
21 = -9 + 3w

Solving for variable 'w'.

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

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

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

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

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

Combine like terms: -9 + -21 = -30
-3w = -30

Divide each side by '-3'.
w = 10

Simplifying
w = 10

See similar equations:

| 9(x-1)=7x+17 | | 3x^3-7x(2x^3+4xy-2y)-3y(-5x^2+2x-3y^3)+4xy(9x-1)=0 | | -2.7m+6.8-4.3=-7.2-7m+14 | | 8*x=20 | | -5.9=-5+a | | 4(y-5)-6y=-30 | | y/-8=-11 | | 4.2=6.9+c | | 3104=32(p+30) | | (1/5)x=-1 | | y-2.9=-6 | | 4(y-5)-6y=30 | | 6.1=-4.5+h | | -7(y+7)=3y+31 | | 672=4(x+17) | | 5=1/5x-3= | | 5.9=2.9+v | | 12z-8=172 | | 22x-21=21 | | 22x-21=16 | | -8x+4(2x-2)=1-9x | | -4.3=5.6+d | | 22x-21=14 | | 87z=4-7z | | 33b+6= | | 3y=-2x+16 | | y+59=88 | | 3y=16-2x | | 5(x+2)=7(x)-8 | | x+0.11x=70 | | 13b=19 | | 329+5.75=363.50 |

Equations solver categories