5a+3(a-7)+8a=15

Simple and best practice solution for 5a+3(a-7)+8a=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 5a+3(a-7)+8a=15 equation:


Simplifying
5a + 3(a + -7) + 8a = 15

Reorder the terms:
5a + 3(-7 + a) + 8a = 15
5a + (-7 * 3 + a * 3) + 8a = 15
5a + (-21 + 3a) + 8a = 15

Reorder the terms:
-21 + 5a + 3a + 8a = 15

Combine like terms: 5a + 3a = 8a
-21 + 8a + 8a = 15

Combine like terms: 8a + 8a = 16a
-21 + 16a = 15

Solving
-21 + 16a = 15

Solving for variable 'a'.

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

Add '21' to each side of the equation.
-21 + 21 + 16a = 15 + 21

Combine like terms: -21 + 21 = 0
0 + 16a = 15 + 21
16a = 15 + 21

Combine like terms: 15 + 21 = 36
16a = 36

Divide each side by '16'.
a = 2.25

Simplifying
a = 2.25

See similar equations:

| 6-6(x-1)-7=7x+2 | | y^2+7y=7(y+7) | | x^6=70-6 | | q=48-2p | | (6-2x)(5-2x)=0 | | 150*(1+0.07)n= | | 3/4x=5/3 | | 3(2x+3)-(-x-2)=4(2x+5)-(x+9) | | X-14=-4/15 | | 150x(1+0.07)8= | | 150x(1+0.07)n= | | 3(2x+3)-(-x-2)=4(2x+5)-(x-1)-5x | | 6x(x+2)=210 | | 69.5X+89.2=15 | | 2x+1=120 | | -6(x^2-x)= | | z/2-z=1 | | 7n-6n=13+22 | | 1+2(3x-4)+5x= | | 4c+5y=-9 | | 18n=6(n+6) | | (2x^2-4x)/(2x^3-8x) | | 6k^2-14k=0 | | .5x-.4=.2(x-1) | | 2800=100-x | | 3x-6(x-7x)= | | (120-4x)=90 | | 24x^2+42x+9=0 | | (7x+5)=20x+20 | | 7x-8x=13-25 | | 5=mx+b | | 4(x-2)=48 |

Equations solver categories