3+2[x-9]=12-7x

Simple and best practice solution for 3+2[x-9]=12-7x 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+2[x-9]=12-7x equation:


Simplifying
3 + 2[x + -9] = 12 + -7x

Reorder the terms:
3 + 2[-9 + x] = 12 + -7x
3 + [-9 * 2 + x * 2] = 12 + -7x
3 + [-18 + 2x] = 12 + -7x

Combine like terms: 3 + -18 = -15
-15 + 2x = 12 + -7x

Solving
-15 + 2x = 12 + -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.
-15 + 2x + 7x = 12 + -7x + 7x

Combine like terms: 2x + 7x = 9x
-15 + 9x = 12 + -7x + 7x

Combine like terms: -7x + 7x = 0
-15 + 9x = 12 + 0
-15 + 9x = 12

Add '15' to each side of the equation.
-15 + 15 + 9x = 12 + 15

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

Combine like terms: 12 + 15 = 27
9x = 27

Divide each side by '9'.
x = 3

Simplifying
x = 3

See similar equations:

| .1*x=900 | | X-5+6x-23=3x+2 | | 7x-4(6-x)+12= | | p-9b/13c-7 | | .1-x=900 | | 5(x+4)=-50 | | 5x-13y+10y= | | 56m^13n^6/8m^12n^3 | | 3x-18=-x+30 | | 8(2b-7)=4(b+10) | | 6x-3x-12= | | 1.04p=124.8 | | 2340=(n-2)180 | | h=5+27t-16t^2 | | -5=-1.60(4)+b | | 7x+19x+13x= | | x^2-y^2=100 | | 96=2(5x+3)+2(4x) | | -4x-27=7x+7 | | y-b=nyb | | x^3y^2+5x^2y-14x=0 | | 5(x+4)+(3x-5)= | | 208=2(5z+2)+2(4z+3) | | 68=.2(20x+50)+2 | | y=-1.60x+b | | -9x^2+35x-30=1-x | | 4y-0.9=5y | | 9(x+5)=6x+2 | | (2+y)(3y+7)=0 | | -3(-5x+2)= | | (8x+1)2+5=10 | | 3x^4+33x^3+90x^2=0 |

Equations solver categories