7a+5(a-1)=12a-2(a+3)

Simple and best practice solution for 7a+5(a-1)=12a-2(a+3) 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 7a+5(a-1)=12a-2(a+3) equation:


Simplifying
7a + 5(a + -1) = 12a + -2(a + 3)

Reorder the terms:
7a + 5(-1 + a) = 12a + -2(a + 3)
7a + (-1 * 5 + a * 5) = 12a + -2(a + 3)
7a + (-5 + 5a) = 12a + -2(a + 3)

Reorder the terms:
-5 + 7a + 5a = 12a + -2(a + 3)

Combine like terms: 7a + 5a = 12a
-5 + 12a = 12a + -2(a + 3)

Reorder the terms:
-5 + 12a = 12a + -2(3 + a)
-5 + 12a = 12a + (3 * -2 + a * -2)
-5 + 12a = 12a + (-6 + -2a)

Reorder the terms:
-5 + 12a = -6 + 12a + -2a

Combine like terms: 12a + -2a = 10a
-5 + 12a = -6 + 10a

Solving
-5 + 12a = -6 + 10a

Solving for variable 'a'.

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

Add '-10a' to each side of the equation.
-5 + 12a + -10a = -6 + 10a + -10a

Combine like terms: 12a + -10a = 2a
-5 + 2a = -6 + 10a + -10a

Combine like terms: 10a + -10a = 0
-5 + 2a = -6 + 0
-5 + 2a = -6

Add '5' to each side of the equation.
-5 + 5 + 2a = -6 + 5

Combine like terms: -5 + 5 = 0
0 + 2a = -6 + 5
2a = -6 + 5

Combine like terms: -6 + 5 = -1
2a = -1

Divide each side by '2'.
a = -0.5

Simplifying
a = -0.5

See similar equations:

| 3(2c+6)=4c-8 | | 7b-(-b)= | | 15t-10t+3=13 | | 4*(cosx)*(cosx)+4*(cosx)=1 | | 4z+14z-17z+-16=-17 | | 10x-30=12x+4 | | 6(a-5)=20+6a | | x-(x*.2)=1960000 | | 27=5x+4x | | (21t+7)(9t+1)=0 | | -83(z-71)=-91+z | | 3.5x=18.2 | | 4p-14p=40 | | -2x+3=x+9 | | 2.1d=51.24 | | x^2+y^2=1989 | | f=a+b+c | | 14x+10=2(5+7x) | | 4.2=1.5x | | 3y-10+y+34=6y+30-4y | | Y=(3x-5y)(2x+5y) | | log(15)+log(13)= | | -20+3w=5w+10 | | 2(n+1)=2n+5 | | x^2+y^2=2048 | | 20=4n | | 2.7=1.8x | | b-223=139 | | 2.7=1.8 | | 14x-8=14x+12 | | 3y+8=14 | | 14x+8=14+12 |

Equations solver categories