3x-9+4x+2=42

Simple and best practice solution for 3x-9+4x+2=42 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-9+4x+2=42 equation:


Simplifying
3x + -9 + 4x + 2 = 42

Reorder the terms:
-9 + 2 + 3x + 4x = 42

Combine like terms: -9 + 2 = -7
-7 + 3x + 4x = 42

Combine like terms: 3x + 4x = 7x
-7 + 7x = 42

Solving
-7 + 7x = 42

Solving for variable 'x'.

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

Add '7' to each side of the equation.
-7 + 7 + 7x = 42 + 7

Combine like terms: -7 + 7 = 0
0 + 7x = 42 + 7
7x = 42 + 7

Combine like terms: 42 + 7 = 49
7x = 49

Divide each side by '7'.
x = 7

Simplifying
x = 7

See similar equations:

| 163=496-3/2q | | .18/.82 | | 6x-28=4x+20 | | 4n-112=116 | | X^3-2x^2-5x+6=56 | | 0.25×N=1/8 | | 58=15+0.1x+0.0003x^2 | | 2x-2=5x-7 | | 2(x+6)=-27 | | 2-(m+1)=10 | | Sinx=-0.1 | | -15+m=9 | | -7-6=6x+5-5x | | 800=A*(1-.42) | | 3-7y=45 | | 9w+3=4w-17 | | 2-2x+5=6x-3 | | 3(x+2)-5(x-3)=45 | | 5x+19+x-17=180 | | 12x^2+6x+4=9 | | (2/3)x-5=(1/4)x | | 800=A*(1-.25) | | 3.2x+0.3x=.2x+1.4 | | xsquared+4x-5=0 | | 8z-9a+2= | | 4x-2=6t+6t | | -9x-12+11x+23=6 | | X=9-2*3 | | 6x+9x+x=672 | | 4+6x=9x-10 | | 5x+19+-17=180 | | 9-2(x+4)-6x-5=8(3-x) |

Equations solver categories