-6-15=-3(a-7)

Simple and best practice solution for -6-15=-3(a-7) 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 -6-15=-3(a-7) equation:


Simplifying
-6 + -15 = -3(a + -7)

Combine like terms: -6 + -15 = -21
-21 = -3(a + -7)

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

Solving
-21 = 21 + -3a

Solving for variable 'a'.

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

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

Combine like terms: -3a + 3a = 0
-21 + 3a = 21 + 0
-21 + 3a = 21

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

Combine like terms: -21 + 21 = 0
0 + 3a = 21 + 21
3a = 21 + 21

Combine like terms: 21 + 21 = 42
3a = 42

Divide each side by '3'.
a = 14

Simplifying
a = 14

See similar equations:

| 2a^2-3a+6=0 | | 2x+5-2=-9 | | 6x^2+54x+84=0 | | 3(x-5)=13-x | | p-11/30=7/30 | | 5=x-7+5 | | .9x-.6=1.8+.3x | | x^256+2x^16+1=0 | | x^2+6c-27=0 | | 4/2(56)=5 | | 15=x-5+4x | | -30-8=-35 | | -3sinx+3cosx=0 | | x^2+0.0120x-0.00332=0 | | 10X^2=48X | | 6x-58=5x | | 3sinx+3cosx=0 | | -18=-r-2r | | 7r-20=-26+4r | | 3t-8=-12+t | | -11=-2-2a-7a | | -14=2(w+5)+4w | | 7p+3p=10 | | 83.3x^2-42.2x+5.08=0 | | -32=-5u+2(u-4) | | 25x^2-8x+15=-0 | | 19x^3+(14+4x^3)= | | 9x+63=198 | | 15=2(x+3)+7x | | -5s-9-3s=15 | | 2/3n-11=4 | | x^2=-19x-60 |

Equations solver categories