21=-3(21-x)+3(x-4)

Simple and best practice solution for 21=-3(21-x)+3(x-4) 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(21-x)+3(x-4) equation:


Simplifying
21 = -3(21 + -1x) + 3(x + -4)
21 = (21 * -3 + -1x * -3) + 3(x + -4)
21 = (-63 + 3x) + 3(x + -4)

Reorder the terms:
21 = -63 + 3x + 3(-4 + x)
21 = -63 + 3x + (-4 * 3 + x * 3)
21 = -63 + 3x + (-12 + 3x)

Reorder the terms:
21 = -63 + -12 + 3x + 3x

Combine like terms: -63 + -12 = -75
21 = -75 + 3x + 3x

Combine like terms: 3x + 3x = 6x
21 = -75 + 6x

Solving
21 = -75 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
21 + -6x = -75 + 6x + -6x

Combine like terms: 6x + -6x = 0
21 + -6x = -75 + 0
21 + -6x = -75

Add '-21' to each side of the equation.
21 + -21 + -6x = -75 + -21

Combine like terms: 21 + -21 = 0
0 + -6x = -75 + -21
-6x = -75 + -21

Combine like terms: -75 + -21 = -96
-6x = -96

Divide each side by '-6'.
x = 16

Simplifying
x = 16

See similar equations:

| 2(x+1)=7(x-1)-26 | | 9(z+1)-2(z-1)=3(z-3)+3(z-1) | | .05x+x=24542 | | 2u+3=7u-2 | | 1.5v+3.6=0.6 | | 3z-28=-3+8z | | 4/5p-12=4 | | 3m-7=-37+9m | | -6/x=4 | | 1.2y+3.7=8.5 | | 1+2(3)-4(5-6)2+7(8-9)3= | | 2.5d+1=3.75 | | -1/2≤(4-3x)/5≤1/4 | | 21sin(x)cos(x)=-6cos(x) | | b-4.2-1.6=4 | | (3x+9)+(2x-4)=90 | | 8H+4k-9(2h-4K)= | | 7/123/4 | | -4y+8-2y=3y-6+5y | | x+1.7=3 | | f(x)=x^2+12x+40 | | 4.2-n=16 | | (13x+11)*(7x+41)=0 | | 11+(-3)= | | (x+2)(x+3)+(x+4)(x+5)=24 | | (3y-8)(9+y)=0 | | 62+3x=9x-6 | | 2x^4+y^4=98 | | 2x^2+y^2=10 | | -15+(15)= | | 48+6x=4-9x | | 7x=5x+42 |

Equations solver categories