2x-3y-4z=-21

Simple and best practice solution for 2x-3y-4z=-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 2x-3y-4z=-21 equation: 


Simplifying
2x + -3y + -4z = -21

Solving
2x + -3y + -4z = -21

Solving for variable 'x'.

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

Add '3y' to each side of the equation.
2x + -3y + 3y + -4z = -21 + 3y

Combine like terms: -3y + 3y = 0
2x + 0 + -4z = -21 + 3y
2x + -4z = -21 + 3y

Add '4z' to each side of the equation.
2x + -4z + 4z = -21 + 3y + 4z

Combine like terms: -4z + 4z = 0
2x + 0 = -21 + 3y + 4z
2x = -21 + 3y + 4z

Divide each side by '2'.
x = -10.5 + 1.5y + 2z

Simplifying
x = -10.5 + 1.5y + 2z

See similar equations:

| 40=2.5x | | 3x+8=21 | | 6+2g=24 | | 2p+6=24 | | 4/6=x/27 | | (4x-5)+x=55 | | (3/2)b+8=20 | | 3c+4=5c-8 | | -7m-6=20 | | 2x-9=47 | | (x+1)(8x+1)=18x | | 3x^2+12=60 | | 6-10x=42-17x | | (x-4)=169 | | 17-6x=5-3x | | 3-4x=8-9x | | -4.6x=92.0 | | 5x^2-20+31x-4=180 | | (x+1)2-1=0 | | 12(x-5)=12 | | 5,06=(0,5+x)/(1,85-x) | | 2x+8=-4-9x | | (2x+24)+30=180 | | 8x-15=-55 | | (3x+1)=(2x+4) | | -2x(12-9)=2+9+2x | | LN(3x+2)=5 | | y-9.5=3 | | 4x+11=111-6 | | 9x^2+16y^2=0 | | 10-6=8x+4 | | 9y-126x=0 |

Equations solver categories