4x-9-x=21

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


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

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

Combine like terms: 4x + -1x = 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 = 30
3x = 30

Divide each side by '3'.
x = 10

Simplifying
x = 10

See similar equations:

| 46=2(2w+5)+2w | | 4[y+3]=24 | | 5m+-6n-56nm+89a+56=5 | | 3x+4=(x-7)*8 | | 3x+25=11x-47 | | 3x+4=8x | | 10p-6=-4+6p | | 7h+7h= | | 61-4x=41x+15 | | 7-7x=29-14x | | 3(2p+7)=24 | | 6x+9=17-7x | | 128-3x=6x+12 | | 2(5*6)= | | 5[t-1]=20 | | x=30-y | | 28=2(2w+5)+2w | | 7x-21=63 | | 96=2(2w)+2w | | 19000+n-1200=35000 | | -9x+2.2=-3x+7 | | (8x-7)-4=3x | | 13+4x=-43-10x | | x-7=8x | | 59+55*n=224 | | 43-2x=7x+22 | | y+4=8x-7 | | X*X+37=14X-8 | | l+9w=460 | | 11x-40+5x+2= | | n+10*4=22 | | 3x=(3x+4)*8x |

Equations solver categories