-3(x+7)=9

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


Simplifying
-3(x + 7) = 9

Reorder the terms:
-3(7 + x) = 9
(7 * -3 + x * -3) = 9
(-21 + -3x) = 9

Solving
-21 + -3x = 9

Solving for variable 'x'.

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

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

Combine like terms: -21 + 21 = 0
0 + -3x = 9 + 21
-3x = 9 + 21

Combine like terms: 9 + 21 = 30
-3x = 30

Divide each side by '-3'.
x = -10

Simplifying
x = -10

See similar equations:

| 2x+y=60 | | -7x+10=-53 | | 8x+32=72 | | 10x-5=-125 | | 7p^2-3p=0 | | a-7=-5 | | 5y-4=y-8 | | 7+y=13 | | 14-3(5m-12)=1(20m+1) | | m+2-M-2=0 | | -8(5-7r)-2=22-8r | | -4+x=9 | | 18=4(2x+7) | | 10-10x=145-45x | | 9x^2+5=86 | | -22-6x=-7(1+3x) | | -4x^2+100=0 | | 4x+6x=0 | | 16+2x=-3(x+8) | | 2x+3x-6x=16 | | 36x^3-121x=0 | | -3x=15-30 | | 7(n-3)=-21+3n | | 9x^2-576=0 | | 2x+4x=-48 | | 3c^2+c-10=c^2-5 | | -2x+34=-6(8-7x)-3x | | -2x=24 | | 25y^2=45 | | 5x=-7 | | -5(-4+5v)=-6v-37 | | 15-x=9 |

Equations solver categories