3+5x=21-x

Simple and best practice solution for 3+5x=21-x 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+5x=21-x equation:


Simplifying
3 + 5x = 21 + -1x

Solving
3 + 5x = 21 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
3 + 5x + x = 21 + -1x + x

Combine like terms: 5x + x = 6x
3 + 6x = 21 + -1x + x

Combine like terms: -1x + x = 0
3 + 6x = 21 + 0
3 + 6x = 21

Add '-3' to each side of the equation.
3 + -3 + 6x = 21 + -3

Combine like terms: 3 + -3 = 0
0 + 6x = 21 + -3
6x = 21 + -3

Combine like terms: 21 + -3 = 18
6x = 18

Divide each side by '6'.
x = 3

Simplifying
x = 3

See similar equations:

| (X-28)+(x/22)+(x+6)=180 | | 14.354/0.7 | | x^2+207362x-207359=0 | | 4a+6c=18 | | p=2+1q | | 3=20-5 | | 1a+3b+3c=18 | | 180=84-x | | 6x^2-150x+864=0 | | X+10-(3x+12)=7x+2(11-4x) | | x=94-2y | | -8u+3(u+7)=6 | | 6+X=128 | | x^2+52000x-2600.25=0 | | 1/3*5/9 | | 10x=(5x+20)/3 | | 5x+12y=8 | | x^2=8(y+2) | | 6m-9=16 | | 3x+3(-x+6)=18 | | -39.72=7.5m | | y+7/2=y+5/1,6 | | t+5-2=16 | | a+4+5=13 | | 8x-3=9x-7 | | 4(x+24)=(-4)(x-24) | | 2(x-4)=(-4)x+34 | | 5(x-3)=(-2)x+41 | | (2/3)x+1/9=(1/3x) | | -1/x=-1/2y | | 3(x+4)+23=(-4)x | | 7(2t+9)= |

Equations solver categories