3-7x+3x+9=31

Simple and best practice solution for 3-7x+3x+9=31 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 3-7x+3x+9=31 equation:


Simplifying
3 + -7x + 3x + 9 = 31

Reorder the terms:
3 + 9 + -7x + 3x = 31

Combine like terms: 3 + 9 = 12
12 + -7x + 3x = 31

Combine like terms: -7x + 3x = -4x
12 + -4x = 31

Solving
12 + -4x = 31

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + -12 + -4x = 31 + -12

Combine like terms: 12 + -12 = 0
0 + -4x = 31 + -12
-4x = 31 + -12

Combine like terms: 31 + -12 = 19
-4x = 19

Divide each side by '-4'.
x = -4.75

Simplifying
x = -4.75

See similar equations:

| 4x^2+4.65x=.65 | | 2a-5=24 | | -99=-11y | | 9x-(9-3x)=3x-1 | | 3x+3+4x+3=52 | | 2[x-3]=x+8 | | 14=-r/8 | | 6x^2+49=-6x-14 | | 2[2m+2]=14 | | 1/2x4/9= | | 5/6*84 | | 7a+9a=4 | | 2m-1=25 | | 16=m/19 | | -3x-9x= | | -2=b/20 | | X-30=-17 | | 9+4x=5x+4 | | 11=-2[p-3] | | -9u+9u-2= | | 9=b+17 | | x^4-49+2x^2-14=0 | | -6x-6=-60 | | 6x+1x+3+2=38 | | -4+8x=20 | | 14=x-7 | | (4w+3)(4w-3)= | | 8x+1=7x+x+4 | | -304=-16x | | 5x+10=5+6x | | -13=-15+r | | 14=-7+3x |

Equations solver categories