2a-12+8a=3a+7+9

Simple and best practice solution for 2a-12+8a=3a+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 2a-12+8a=3a+7+9 equation:


Simplifying
2a + -12 + 8a = 3a + 7 + 9

Reorder the terms:
-12 + 2a + 8a = 3a + 7 + 9

Combine like terms: 2a + 8a = 10a
-12 + 10a = 3a + 7 + 9

Reorder the terms:
-12 + 10a = 7 + 9 + 3a

Combine like terms: 7 + 9 = 16
-12 + 10a = 16 + 3a

Solving
-12 + 10a = 16 + 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.
-12 + 10a + -3a = 16 + 3a + -3a

Combine like terms: 10a + -3a = 7a
-12 + 7a = 16 + 3a + -3a

Combine like terms: 3a + -3a = 0
-12 + 7a = 16 + 0
-12 + 7a = 16

Add '12' to each side of the equation.
-12 + 12 + 7a = 16 + 12

Combine like terms: -12 + 12 = 0
0 + 7a = 16 + 12
7a = 16 + 12

Combine like terms: 16 + 12 = 28
7a = 28

Divide each side by '7'.
a = 4

Simplifying
a = 4

See similar equations:

| 5x/4=6.7 | | 23x3/16 | | 4x-28=x-14 | | 6x-2x+11+1=0 | | -3(3+x)+4(x-6)=x-4 | | 10x+10=-x-9 | | 40-4+10x-60=80-10 | | -5x+8=2x-2 | | 2x+7=9x+24 | | (6x-8x)+(3+10)= | | 24m=0.228 | | -0.584ln(x)+2.3339=y | | 21pie/13 | | 12pie/13 | | X^2+1=(x+1)*(x+1) | | 3(-2)=x+7 | | -3x+3(3x+18)=-6 | | 2x^2+16x+31=2 | | 17p-10=12p+5 | | 20+2x-2+10=6+80 | | h(t)=-16t^2+8t+384 | | -6x-3(-6x+17)=-171 | | Sn=2n^2+1 | | -7x+5(-3x-13)=67 | | 2x-5(-x-9)=87 | | In(x+-1)+In(3)=In(x) | | -7+4(3x+12)=23 | | (x^2/2)-(3x/5)=-1/10 | | 14/6=x/5 | | 5x-4(x-15)=70 | | 2*x-3=24x | | 4x+2x=69 |

Equations solver categories