3x+21=4x+12

Simple and best practice solution for 3x+21=4x+12 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+12 equation: 



3x+21=4x+12

We move all terms to the left:

3x+21-(4x+12)=0

We get rid of parentheses

3x-4x-12+21=0

We add all the numbers together, and all the variables

-1x+9=0

We move all terms containing x to the left, all other terms to the right

-x=-9

x=-9/-1

x=+9

See similar equations:

| -8x^2+13x+6=0 | | -7x-6=x+6(x+5) | | 9x-10+6x=35 | | 18x^2-51x+21=0 | | (f+5)+(-2)=6 | | y=1.6+0.9 | | 4x^2–8x+6=2 | | x=0,x=-5,x=4 | | 7/6*x+28=-28 | | 3/2y-8+2/5y=2y | | 4x-30+2x=12 | | 80/25=10p | | 7/9x+5=33 | | 7/6*r+28=-28 | | 5n=11^4 | | x(7/2x)=14 | | 12x/7-6=-11 | | 6x=30-18 | | 12h-13=6 | | 13=2(x-1)+3x | | 5x^2-11/2x+3/2=0 | | 2^4x=8x+5 | | 44=2(r)(3.14) | | 4.9t^2-10.1t-75=0 | | 7/22(44)=2(r) | | 202.5=36t-0.8t^2 | | 14w=5w+45 | | y-94=582 | | 5x^2-11/2+3/2=0 | | -4=h-20= | | 5^9+q=2^3 | | 9x+36=x(x) |

Equations solver categories