3X=21+4X

Simple and best practice solution for 3X=21+4X 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 3X=21+4X equation: 


Simplifying
3X = 21 + 4X

Solving
3X = 21 + 4X

Solving for variable 'X'.

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

Add '-4X' to each side of the equation.
3X + -4X = 21 + 4X + -4X

Combine like terms: 3X + -4X = -1X
-1X = 21 + 4X + -4X

Combine like terms: 4X + -4X = 0
-1X = 21 + 0
-1X = 21

Divide each side by '-1'.
X = -21

Simplifying
X = -21

See similar equations:

| 4x+-2y=12 | | .24(811+y)=x | | x=194+.24y | | 12=g-42 | | t-18=18 | | 28c+(-7c)-5+2= | | y+1.74=6.67 | | 30=24+w | | 4(5y-1)=3(6y+7) | | -2x-9=2x+3 | | (-1)3= | | 3x+45=7x+25 | | 32=2(w+12)+2w | | (x)(x+11)=0 | | (x+7)(x+9)=0 | | -3x-26=x+2 | | 5(x+7)=5(x+12) | | x-8.5=7 | | X+40=4x+16 | | 12x-9-(8x-60)=-9-x | | 12+78=a+6 | | 6x+10=-9x-19 | | 6(4a+2)+5(7a+8)= | | 6x+10=6x-19 | | 3v+8v= | | X^8-5X+4=0 | | absx+3=-1 | | -5m+35=-5(4m-1) | | 3r+5r-15+8= | | 0=x-2y+4 | | 6a-2a(a-3)=28 | | 3a-2(b+2)=11 |

Equations solver categories