4x-12=7x+21

Simple and best practice solution for 4x-12=7x+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 4x-12=7x+21 equation:


Simplifying
4x + -12 = 7x + 21

Reorder the terms:
-12 + 4x = 7x + 21

Reorder the terms:
-12 + 4x = 21 + 7x

Solving
-12 + 4x = 21 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-12 + 4x + -7x = 21 + 7x + -7x

Combine like terms: 4x + -7x = -3x
-12 + -3x = 21 + 7x + -7x

Combine like terms: 7x + -7x = 0
-12 + -3x = 21 + 0
-12 + -3x = 21

Add '12' to each side of the equation.
-12 + 12 + -3x = 21 + 12

Combine like terms: -12 + 12 = 0
0 + -3x = 21 + 12
-3x = 21 + 12

Combine like terms: 21 + 12 = 33
-3x = 33

Divide each side by '-3'.
x = -11

Simplifying
x = -11

See similar equations:

| m^3+5m^2-m+7=0 | | -27+-18=x | | 5x^2-44x=9 | | 3n+18=45 | | 1/3y=20 | | 3a+2[2+3a-3]=6a+8 | | 6x^2+3=219 | | 4c^2=9 | | a/4=3/2 | | m/7=-28 | | -14+x=44 | | a/4=11/2 | | 1.5x-0.5=2.5 | | I=2020(.08)(1.5) | | 3x-2/2+x/4=2+x | | -4=11+p | | 6y^2+5y-40=16 | | P=r-s-7 | | x+6=-35 | | x+6=35 | | -1=x/5-12 | | 5x+10+5x-10=100 | | 9x-6=130 | | 9m=-54 | | (4x-5)(3x+8)=13x | | -32=-16+8y | | X/4+1/9 | | 4x^2-36x+80=63 | | 2.75=d/96 | | x/4-22=-15 | | 5[2-2x+4]=10-6x | | 2(x/4+3) |

Equations solver categories