3x+30=21

Simple and best practice solution for 3x+30=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 3x+30=21 equation: 


Simplifying
3x + 30 = 21

Reorder the terms:
30 + 3x = 21

Solving
30 + 3x = 21

Solving for variable 'x'.

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

Add '-30' to each side of the equation.
30 + -30 + 3x = 21 + -30

Combine like terms: 30 + -30 = 0
0 + 3x = 21 + -30
3x = 21 + -30

Combine like terms: 21 + -30 = -9
3x = -9

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

Simplifying
x = -3

See similar equations:

| .09(.25x)+.07x=195 | | 1/2-10/11= | | -3ab(5a-6b-7)= | | 4x/2=280000 | | 5x^2=14x-3 | | 11-6(3-7)/-7 | | 10(9+2x)=33(x-2) | | 116=8+96t-16(t^2) | | 4+3v=-17 | | 2x-4=7x+9 | | 8a+6=4a+20 | | 91=x^2(91/x^2) | | 2x+5=x*5-4 | | -1-10h=-31 | | 0.5(x+2)=15 | | x/4=3/11 | | x^2(91/x^2) | | 2x-22=66 | | 6(4x-4)-5(x-2)= | | 40x^2-14x=0 | | 22-2x=66 | | 4(-4a-9b)= | | 1/3=5n-1/4 | | .14(300+x)+.06(y)=376 | | x*3-2=6+x | | x-7=-12x | | -5x^2-5x-10=0 | | c=15n+5 | | .7-4y=1.74 | | 3c=19+-2 | | 6x^3+37x^2-34x+7=0 | | 900=45m |

Equations solver categories