3(7-x)=12x-9

Simple and best practice solution for 3(7-x)=12x-9 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(7-x)=12x-9 equation:


Simplifying
3(7 + -1x) = 12x + -9
(7 * 3 + -1x * 3) = 12x + -9
(21 + -3x) = 12x + -9

Reorder the terms:
21 + -3x = -9 + 12x

Solving
21 + -3x = -9 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
21 + -3x + -12x = -9 + 12x + -12x

Combine like terms: -3x + -12x = -15x
21 + -15x = -9 + 12x + -12x

Combine like terms: 12x + -12x = 0
21 + -15x = -9 + 0
21 + -15x = -9

Add '-21' to each side of the equation.
21 + -21 + -15x = -9 + -21

Combine like terms: 21 + -21 = 0
0 + -15x = -9 + -21
-15x = -9 + -21

Combine like terms: -9 + -21 = -30
-15x = -30

Divide each side by '-15'.
x = 2

Simplifying
x = 2

See similar equations:

| 6x=5-23 | | -13(x-12)=9(1+7x) | | x+2.3=5.3 | | 3/4×x=14.9 | | -5p+5p+9=8 | | z/14=4/5 | | 2x-10=4x-1 | | 11+14=6x+43 | | 6(6x+6)-5-=1+6x | | 5x-3=4(4x-9) | | 3(y+2)-5+16=44 | | 31/3*11/2 | | 5n+20=3n+66 | | 4x-3x+2=9 | | 35=x+15 | | 6x*2+9x+30=0 | | 5y=4(x-5)+10 | | 2(5x+10)=8x+20 | | 12-y=13+y | | 3(2x-3)+7=15 | | A-22=-61 | | 4(2x-4)+10=2x-8 | | -1=3b+2b | | ln(x+1)+ln(2x-1)=31 | | y=(0,5)=1/2 | | 3(2x-3)+7=25 | | X(2y-1)dy=y(1-x)dx | | 4x+3=-5x+2 | | -t=9(-10) | | 2x+3x-5=-15 | | r+0.75=1.25 | | x-3ln(x)=ln(2e)+2 |

Equations solver categories