8x-9=5x+21

Simple and best practice solution for 8x-9=5x+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 8x-9=5x+21 equation:


Simplifying
8x + -9 = 5x + 21

Reorder the terms:
-9 + 8x = 5x + 21

Reorder the terms:
-9 + 8x = 21 + 5x

Solving
-9 + 8x = 21 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-9 + 8x + -5x = 21 + 5x + -5x

Combine like terms: 8x + -5x = 3x
-9 + 3x = 21 + 5x + -5x

Combine like terms: 5x + -5x = 0
-9 + 3x = 21 + 0
-9 + 3x = 21

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:

| 5+4(v+3)= | | 44+4x=7x+8 | | n^2=-45+14n | | M/7-9x=23 | | X-0.8=7.2 | | 3=5(6n+3)-4(8n+5) | | 5x(1/2)=6x-(5/6) | | 2/10-1/8 | | x^2+y^2+2*x=0 | | 2k+7=22-3k | | (-6-7i)-(1-3i)=0 | | (6x^3)/(3x^2) | | 20=100/x | | 7r+12-3r= | | cos(t)-sin(t)=0 | | 4x+20=8-2x | | T-3.7=17.8 | | a/15=-20 | | (4w-6)(2+w)=0 | | X+3=2x+17 | | 10/12÷1/4 | | 5+x=18.9 | | 45+2c=89 | | -3y(4y+2)= | | e^4x=1/32 | | -2y/9=-4 | | 3+2x+3x-4=24 | | 2c-7/3=6 | | 8+17-5*3= | | 1.7a+5.5a= | | M/20=52/20 | | 4w+24=-3w-32 |

Equations solver categories