-7x-9=12

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


Simplifying
-7x + -9 = 12

Reorder the terms:
-9 + -7x = 12

Solving
-9 + -7x = 12

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -7x = 12 + 9

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

Combine like terms: 12 + 9 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

See similar equations:

| (36/6)/3=36/(6/3) | | -12-3(5-b)=0 | | x^2-360x+18000=0 | | 12x-9+6x+9=180 | | (6y^2-9y+2)-(4y^2-9y+4)= | | 5x+(17x+4)=180 | | 1.2-2.4=3x | | 1=9+2x | | 2x+51=5x-6 | | 12=8+3x | | x/(3-4x)+5x/(4x-3) | | x+x+45=18 | | 4.6=4x-3.4 | | 5x+150=180 | | -2x+9=3(x-2) | | 5(x-3)+2(x+5)= | | (6)(5)= | | 3/180 | | 5x-15+2+10= | | 2*(-3)*(-2/3*-6)+0,25 | | (5+4)+10=5+(4+10) | | 4x-19=6x-3 | | 5(4r+1)-r=4(2r-3)+15 | | 2a-9=4a-5 | | 42+5=-25 | | 2x^2+18x+21=0 | | 7x+2y+2=0 | | 1-30x-9x^2=0 | | 20x-9-15x+3=17x-3-12x+11 | | 2x-8=-x+17 | | 18(2x-1)=3(x+5)+3 | | H^2-36= |

Equations solver categories