3(x-20)=21

Simple and best practice solution for 3(x-20)=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 3(x-20)=21 equation: 


Simplifying
3(x + -20) = 21

Reorder the terms:
3(-20 + x) = 21
(-20 * 3 + x * 3) = 21
(-60 + 3x) = 21

Solving
-60 + 3x = 21

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + 60 + 3x = 21 + 60

Combine like terms: -60 + 60 = 0
0 + 3x = 21 + 60
3x = 21 + 60

Combine like terms: 21 + 60 = 81
3x = 81

Divide each side by '3'.
x = 27

Simplifying
x = 27

See similar equations:

| -(9/8)+(1/8)=-3/4 | | -16=6x | | x^3+10x^2+13x=0 | | 2x*2+10=210 | | 151-3x=6x-16 | | -5x*2=-500 | | 8-6x-2=40+4x-14 | | x*2+8=28 | | 30b= | | 4x+25-2x=6 | | 3x^2-27/x^2=0 | | x*2=76 | | 3x^2-27x^2=0 | | x*2-2=17 | | -12+x=54 | | n^2=28+3n | | 7x^2+1=5x | | 23=6+x | | -2x*2=-162 | | 9+3x=25+1 | | 51/4=x+7/16 | | 3x+4=21 | | x*2+7=88 | | 65/2.2 | | 7*7+10y=70 | | 192=x-.2x | | -11-10x=9x+22 | | 2x*2=288 | | 3+7+x=2+8 | | 2*n+5=11 | | 2x*2-2=6 | | (1-2x)x/(2x-1)=0.12 |

Equations solver categories