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:

| 8r^2=56r+64 | | 2a^2+15a-45=0 | | 8x+6-6x=9+x-4 | | x=-0.25+-0.75y | | 5(n+7)=7(n-5) | | C=25+0.10n | | -x^2+x=36 | | (12x^3y^2-8xy^4-9x^2y)/(6x^2y^2) | | 5x-3(0)=18 | | h(t)=-16t^2+48t+15 | | 9x-6x+2=48 | | Hb(29.2)=2.87sqrt(12)+20.08 | | x^3+x^2+x=123 | | Y^2+2y=-8x+15 | | 36x^2+108x+81= | | 3sqrt(14)/42 | | 5x-44= | | x^2+6x+55=0 | | x=0.8+(-0.4) | | -0.01x^2-0.1x+6=0 | | 0-(-11)= | | 6*3.6+25= | | 40x=25(x+1) | | -37-7a+12a=88 | | 5+y(3x-7)i=9-3i | | x(21+x)=1450 | | 15(x^2+y^2)(x^2+y^2)=289(x^2-y^2) | | y=ln(tan(e)) | | 5-2x=125 | | x^2=-12x+45 | | 3(4c-1)-10=6c+5 | | 9y+2x=25 |

Equations solver categories