3x+12x-42=18

Simple and best practice solution for 3x+12x-42=18 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+12x-42=18 equation:


Simplifying
3x + 12x + -42 = 18

Reorder the terms:
-42 + 3x + 12x = 18

Combine like terms: 3x + 12x = 15x
-42 + 15x = 18

Solving
-42 + 15x = 18

Solving for variable 'x'.

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

Add '42' to each side of the equation.
-42 + 42 + 15x = 18 + 42

Combine like terms: -42 + 42 = 0
0 + 15x = 18 + 42
15x = 18 + 42

Combine like terms: 18 + 42 = 60
15x = 60

Divide each side by '15'.
x = 4

Simplifying
x = 4

See similar equations:

| 4x-1=79-4x | | 115-2x=25x+19 | | 30x-72= | | X^2+6x+9=49/4 | | 3(y-3)=2y-9+7 | | -2(-1.5)-4=-4+3 | | 3m-2=25 | | 5y-14=2y+2 | | 2x-9=-5 | | 30+5k=-6(4k-8) | | 4(x-8)+2x=18 | | -t/5=15 | | 11x-14=6x+21 | | 15/2h-14/2h | | 45=3y+15 | | 6x^2-21x+18=0 | | (k+9)4=9k+44 | | -2x+10=6 | | h=69.089+2.238F | | 3+n/5=14 | | 3(-4)+7=(-4)-1 | | 7y-1=15 | | 2/5y-8=0-3/5y | | 2(-4)+y=1 | | 12x-4x=180 | | 6-2y=14 | | 3+3x=-6 | | xy+x+zy+z=0 | | 7t=112 | | 3y+15=-16 | | 42j+18-19j=-24 | | 5x+15y+ax+3ay=0 |

Equations solver categories