21-2x=15

Simple and best practice solution for 21-2x=15 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 21-2x=15 equation: 


Simplifying
21 + -2x = 15

Solving
21 + -2x = 15

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + -21 + -2x = 15 + -21

Combine like terms: 21 + -21 = 0
0 + -2x = 15 + -21
-2x = 15 + -21

Combine like terms: 15 + -21 = -6
-2x = -6

Divide each side by '-2'.
x = 3

Simplifying
x = 3

See similar equations:

| 3+11=2+-4 | | X/29=8.610 | | Y=2w*w | | 2lnx+ln(3)=0 | | -27/18x=1/2 | | 5+-10=3+-5 | | 6r-4r+3=9r+3-r | | w^2+8+15=0 | | cd+e=21 | | 3*5z^2+6= | | [16-52]/2= | | 4+1=4+7 | | g(-x)=3x^2-2x+12 | | 12r-bs=t | | 9=(n/3) | | 2a^2-6a-8=0 | | (14z^2+2)+(3z-4)=0 | | 6*4-2*5+(-21)= | | -3(5+3n)+6=-63 | | 4w+13x-7y=420z | | 5-2a-a=14 | | 3(2y+2)=-39 | | 2x+(x+4)=24 | | -14/12x=6/12 | | 8x+12=6x+50 | | 5a+2a=-49 | | 3(5s+5)-9s=3(2s+6)-23 | | 9r-5r+3=7r+3-r | | (9x-18)-(-7x+7)= | | 3x^2+36=-31x | | 5=z/-4 | | 30-5h=h+6 |

Equations solver categories