21-3(2-w)=-21

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


Simplifying
21 + -3(2 + -1w) = -21
21 + (2 * -3 + -1w * -3) = -21
21 + (-6 + 3w) = -21

Combine like terms: 21 + -6 = 15
15 + 3w = -21

Solving
15 + 3w = -21

Solving for variable 'w'.

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

Add '-15' to each side of the equation.
15 + -15 + 3w = -21 + -15

Combine like terms: 15 + -15 = 0
0 + 3w = -21 + -15
3w = -21 + -15

Combine like terms: -21 + -15 = -36
3w = -36

Divide each side by '3'.
w = -12

Simplifying
w = -12

See similar equations:

| -8z=30 | | 3(X+2)=4(X-3) | | 3m^2+7=56 | | 5*m=25 | | 32+g=17 | | 1411780=-2.06x^2+77.84x+748 | | .17x=240 | | 9f^2-12f=5 | | 4.1x+54.8=23.2-11.7x | | 16=x+52 | | 0.8x+8.1=6.9 | | 9w^2=225 | | ln(24.9/x)=-1.7325 | | -4-2y=12 | | 20x+5(x+20)=455 | | 6y-3(5y+2)=4(4-y) | | -4=x/8-19 | | -4+5x-(1+4x)=5-3x+6 | | t/3=1 | | x^2-16=25 | | -5(2n+2)=5 | | 5t-13=-7+6t | | 5xsquared+15x=0 | | 2(x+2)=3(1-3x) | | d-3=-18 | | 7(7y-4)+5= | | -4+5-(1+4x)=5-3x+6 | | 6z-26=-29+7z | | -4x+10=3x-5 | | 3+18m-2=5m+81-3m | | -6x+5=-4 | | 0.2(60)+0.05x=0.1(64.3+x) |

Equations solver categories