15=-2x-21

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


Simplifying
15 = -2x + -21

Reorder the terms:
15 = -21 + -2x

Solving
15 = -21 + -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.
15 + 2x = -21 + -2x + 2x

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

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

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

Combine like terms: -21 + -15 = -36
2x = -36

Divide each side by '2'.
x = -18

Simplifying
x = -18

See similar equations:

| h=-16t^2+128t+380 | | 2(3t-5)=16t+7 | | 3+12x=3+x | | 12z+6=78 | | Lnx=lny | | x+y=490 | | 5x+21=-10 | | x*2+166=x*11-5 | | -3(1w-9)+8w+2= | | -16=5-4x+11x | | x^2+6*x+5=5 | | 2x+2y=980 | | .25(16+8x)=3x-1-x+5 | | -3(w-9)+8w+2= | | 3x^2-cosx=0 | | 3(x-2)=5x-8 | | -27-8x=8x-21 | | x+x+1+x+2=9 | | 2s^3+4s^2+s=0 | | 6(3x-4)=16 | | 3x+5=.2(15x+10) | | 3x+7=-41+9x | | (3x+18)(x^2-x-2)=0 | | -16a=-80 | | 12x^2+35x+35=0 | | -28-3x=12-9x | | 5x-8=8x-7 | | 3(x-6)-5(x+2)=18 | | t=8n-7 | | 3(5x+8)=-7+1 | | .25(4x+5)=24 | | 5z+9=5z-z |

Equations solver categories