-21=15-2x

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


Simplifying
-21 = 15 + -2x

Solving
-21 = 15 + -2x

Solving for variable 'x'.

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

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

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

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 = 36
2x = 36

Divide each side by '2'.
x = 18

Simplifying
x = 18

See similar equations:

| (x+12)*0.5=2.5x | | 6(-10+x)=-12 | | 2r-6=14 | | 14+13x=4x+113 | | -4x+2=4-5x | | 5(3x-12)=45 | | -12(-2-3a)=4(9a+12) | | 0=-5(-2+r) | | -4n^2-2n+1= | | f(x)=5-7(8) | | r^2-17r+c= | | 3*(3x-4)+11=17 | | -10(s+4)=-119 | | x^2-19x+c= | | 4x+4+x=-1 | | 2x-39=x-33 | | r^2+21r+c= | | 10+01+10+10+10+10+10+10+10+10+10+10+1+10+10+10+10+1+10+110=1000x | | 9+6x=-4x-91 | | f(x)=5-7(-6) | | 9+6x=-4-91 | | -2(4y-3)=30 | | 6p^2-4p-5= | | 3cosx-2sinx=0 | | 6x-20=5x+9 | | 6v^2+5v-10= | | 5(6x-7)=10 | | -3n^2+16n-40=-8n^2+6n | | 5-6x=2x+53 | | -3x^2+12x+36x= | | 171=65-x | | 22+3y+1+22+3y+1= |

Equations solver categories