-x+8x=21

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


Simplifying
-1x + 8x = 21

Combine like terms: -1x + 8x = 7x
7x = 21

Solving
7x = 21

Solving for variable 'x'.

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

Divide each side by '7'.
x = 3

Simplifying
x = 3

See similar equations:

| M=5gh | | 8x-27-10-6x= | | 2+x-9=-5 | | 100x=(40/1)*x | | 1.5=c-5.3 | | 7x+2y=580 | | -2=3x-7 | | 3X^2+3(3+4)= | | 40t+15=22t-3 | | 5x+2z+c+22b=432 | | 7x-4=12-2x | | 10x+3=6(-2x+6) | | 6(2+2)+7= | | 4y+2=1 | | 2x-6y+5=0 | | 3x+1+2x+2=64 | | .5x-2.1=.4 | | 6x^2-29x/20-3/10=0 | | (12m+6)-(3m-9)= | | 3x-5x+x-6+4x= | | 4x+100=1 | | 1/3x3.14x4x4x12 | | 1(6x+7)=(x+2)(x+2) | | 1(6x+7)=4x+4 | | 7.3Y-5.5=-51.9 | | m+6m-m-7= | | x=256+-0.75*32 | | x=256+-0.75*12 | | 4xsquared+4x+1=49 | | 12-4x=-0 | | 4x+3y=1024 | | -(6a+5)-4(a-8)= |

Equations solver categories