x+8-4x+1=21

Simple and best practice solution for x+8-4x+1=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 x+8-4x+1=21 equation:


Simplifying
x + 8 + -4x + 1 = 21

Reorder the terms:
8 + 1 + x + -4x = 21

Combine like terms: 8 + 1 = 9
9 + x + -4x = 21

Combine like terms: x + -4x = -3x
9 + -3x = 21

Solving
9 + -3x = 21

Solving for variable 'x'.

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

Add '-9' to each side of the equation.
9 + -9 + -3x = 21 + -9

Combine like terms: 9 + -9 = 0
0 + -3x = 21 + -9
-3x = 21 + -9

Combine like terms: 21 + -9 = 12
-3x = 12

Divide each side by '-3'.
x = -4

Simplifying
x = -4

See similar equations:

| (-2p^5q^-4/q^3)^3 | | k^2+9=30 | | -3x-2=5-2x | | 37*12t=85 | | 8-2x-4=6+2x-2 | | r+11we= | | Y=1000+1200 | | y=60x+50 | | 60x/1350=160 | | 3+3=2+2 | | 1/3*t=7 | | 60x/160=1350 | | R+11=r+7 | | 2x(2)-5x=x(2)+3x | | 6u-12u=32918321 | | 12h=9h+48 | | 6b-7=b+98 | | 43.2=2.7 | | 2f+7-8=22 | | (2x+5)+(x+2)=3(x-1)+7 | | 8x+7+2x=27 | | X+.5x=1725 | | -8r-2=40 | | x(2)-3x+7=x+52 | | 0.4x-0.9y=4.7 | | -10g=-10 | | 18+g=-5 | | 2x^4-9x^3+11x^2-6x=0 | | 12u-4u=24 | | T-21=7 | | 14s^2-3st-5t^2=0 | | X/5=W=Y |

Equations solver categories