4x-1=9x-21

Simple and best practice solution for 4x-1=9x-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 4x-1=9x-21 equation:


Simplifying
4x + -1 = 9x + -21

Reorder the terms:
-1 + 4x = 9x + -21

Reorder the terms:
-1 + 4x = -21 + 9x

Solving
-1 + 4x = -21 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
-1 + 4x + -9x = -21 + 9x + -9x

Combine like terms: 4x + -9x = -5x
-1 + -5x = -21 + 9x + -9x

Combine like terms: 9x + -9x = 0
-1 + -5x = -21 + 0
-1 + -5x = -21

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

Combine like terms: -1 + 1 = 0
0 + -5x = -21 + 1
-5x = -21 + 1

Combine like terms: -21 + 1 = -20
-5x = -20

Divide each side by '-5'.
x = 4

Simplifying
x = 4

See similar equations:

| 5d=-20 | | 3x-6=2x+8+14 | | 10=5+k | | 8t+7=2t+61 | | (-35)*(-14)*(0.5)= | | 3x-10i=9+5yi | | 6x+1=5x-1 | | 16+6+5x=180 | | 17p-30=11p | | 6x+10-3x=6x+5-3x | | 11u+68=u+78 | | 12+4b-2=6b-2+2b | | 49(0.9-x)=5x | | 4y+3y=10y+12 | | 12a+66=4a+74 | | 6x+5-3x=3x+5+3x | | 15b+5=5b+45 | | 18c+9=2c+41 | | 3t-61=t+25 | | 10u-8=4u+10 | | 9u-71=4u+74 | | 8n-4=32 | | 4x+2.2=x+1.0 | | -7+0.15s=5.55 | | 6b=b+80 | | 1.2b= | | X-(6-X)=12 | | (3k+5)(9-k)=15(k+3) | | x^2-25x+121=0 | | 1255/15 | | 125/15 | | (3k+5)(k-9)=15(k+3) |

Equations solver categories