-3(4+a)=15

Simple and best practice solution for -3(4+a)=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 -3(4+a)=15 equation: 


Simplifying
-3(4 + a) = 15
(4 * -3 + a * -3) = 15
(-12 + -3a) = 15

Solving
-12 + -3a = 15

Solving for variable 'a'.

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

Add '12' to each side of the equation.
-12 + 12 + -3a = 15 + 12

Combine like terms: -12 + 12 = 0
0 + -3a = 15 + 12
-3a = 15 + 12

Combine like terms: 15 + 12 = 27
-3a = 27

Divide each side by '-3'.
a = -9

Simplifying
a = -9

See similar equations:

| 10x^2-x^3-16x=8 | | 0.25r-0.125+0.5r=0.5+5 | | 0=9x^3+9x^2-x-1 | | 4-2x=6-3x | | 4x-20=20-5x | | (41)*(-30)= | | 8x+13=8x-13 | | 5x+9y+7=0 | | (4x-1)(3x)= | | 5a-5=6a+-16 | | 21x^2+14x-5=0 | | 35x-x=306 | | -3y+10=15y-8 | | V+(-7)=-24 | | 4x+13=4x-13 | | 4(3x-3)=2(2x-1)+2x | | 9x^2+60x+13=0 | | 0.816=x^4 | | 291=-u+206 | | (2x+4)*2+1=7x | | 5f+2+12=f | | 4x^2-12x=9x-27 | | 12r^2+19r-21=0 | | 51v=68 | | (2x+4)*2=25 | | 6x-3(8x+4)-11+2x=7(x-2)+3-11x | | 178-v=31 | | 42+-14a=-15a+6 | | -190=10a | | =2x-4x^2 | | 2x^4+20=13x^2 | | 3x-4=18-4x |

Equations solver categories