-2a-9=6+15

Simple and best practice solution for -2a-9=6+15 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 -2a-9=6+15 equation:


Simplifying
-2a + -9 = 6 + 15

Reorder the terms:
-9 + -2a = 6 + 15

Combine like terms: 6 + 15 = 21
-9 + -2a = 21

Solving
-9 + -2a = 21

Solving for variable 'a'.

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

Add '9' to each side of the equation.
-9 + 9 + -2a = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -2a = 21 + 9
-2a = 21 + 9

Combine like terms: 21 + 9 = 30
-2a = 30

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

Simplifying
a = -15

See similar equations:

| 4x^2-64x=36 | | 2-8*(-3)+3*(-3)=17 | | =5x^2-50x+128 | | -107-2x=40-9x | | 3x^6+12x^4= | | (9/5)b+(3/2)b=-(33/10) | | 3(10+x)=4(x-11) | | 9x^2-24x+16=2 | | 480+3X=5X | | (x-7)(3)=(x)(180-x) | | k/9+19=27 | | 6-2(y-5)=12+3(2y-4) | | 4x+14=78-4 | | 8p=-176 | | X^3+3x^2-100x+96=0 | | x^2-3(x-1)=3x-8 | | 2x^2-x-6= | | 3x+2=2(x+1) | | r+(1/3)-(8/5)=(22/5) | | 3X+480=5X | | 2w*w=18 | | 5x+2=x-10 | | =x^2-10x+11 | | -5(-17a)= | | 4x-4=2x-28 | | (3x+8)+(5x-20)+(5x+4y)= | | ln(4x+1)=0 | | g(x)=x^2-10x+11 | | 5(x+7)=71x | | (5/4)m+1+4=(15/2) | | -5(x-4)=-15 | | 4(x-3)-2(x-1)=0 |

Equations solver categories