3x+21=3

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


Simplifying
3x + 21 = 3

Reorder the terms:
21 + 3x = 3

Solving
21 + 3x = 3

Solving for variable 'x'.

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

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

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

Combine like terms: 3 + -21 = -18
3x = -18

Divide each side by '3'.
x = -6

Simplifying
x = -6

See similar equations:

| x(3-7)+8+2x=3x-7x+8-2x | | 4.5-9m=3 | | 3z=z-18 | | 9y=33-2y | | 4.5x^3+5x^2=12.5x | | 12x=7x+20 | | 3x-7x+8-2x= | | 6x+7=3x+16 | | -3x-6(4x-16)=-39 | | x(3-7)+8+2x= | | -3(r-4)+4=-15 | | 0.1x+0.5(x+8)=7 | | 5x^2+9x-14=0 | | 11(x+3)+2(x+3)= | | 9y=6y-12 | | 8x=6x+5 | | 4m=3m+8 | | -17n+3n=7(n-2) | | 8y-9=-y+9 | | 8m-4=8 | | -1=3 | | 5k-6(k-1)=8 | | 3x+5=7x-5 | | 8y-(2y-3)=9 | | -4y+-3=15 | | r=5*-2 | | x^2+2x=3 | | 20x+15y= | | 2y-7=5 | | 6x^2-2x=0 | | 2(k+5)=3 | | -5.62=y+11.39 |

Equations solver categories