6(a-7)+12=3(a-7)

Simple and best practice solution for 6(a-7)+12=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(a-7)+12=3(a-7) equation:


Simplifying
6(a + -7) + 12 = 3(a + -7)

Reorder the terms:
6(-7 + a) + 12 = 3(a + -7)
(-7 * 6 + a * 6) + 12 = 3(a + -7)
(-42 + 6a) + 12 = 3(a + -7)

Reorder the terms:
-42 + 12 + 6a = 3(a + -7)

Combine like terms: -42 + 12 = -30
-30 + 6a = 3(a + -7)

Reorder the terms:
-30 + 6a = 3(-7 + a)
-30 + 6a = (-7 * 3 + a * 3)
-30 + 6a = (-21 + 3a)

Solving
-30 + 6a = -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.
-30 + 6a + -3a = -21 + 3a + -3a

Combine like terms: 6a + -3a = 3a
-30 + 3a = -21 + 3a + -3a

Combine like terms: 3a + -3a = 0
-30 + 3a = -21 + 0
-30 + 3a = -21

Add '30' to each side of the equation.
-30 + 30 + 3a = -21 + 30

Combine like terms: -30 + 30 = 0
0 + 3a = -21 + 30
3a = -21 + 30

Combine like terms: -21 + 30 = 9
3a = 9

Divide each side by '3'.
a = 3

Simplifying
a = 3

See similar equations:

| 10*k-2=20 | | 10*n=3 | | 1+3.5x=2.5x | | 5*n+1=175 | | 3x-5[2x-4(6-x)]= | | 3x(x-2)-20=10 | | 4*x-5=12 | | 2(x-4)=x+17 | | 4*3n=5 | | kx^2+4x+k=2 | | 8*n+1=3 | | 19=7-(z+9) | | 64*x=4096 | | -2x+18x=0 | | 3n+10=5n | | 3(x-1)+2(x-2)=5x-7 | | 25*2n+1=625 | | 5(x-4)=2(3x-3) | | -3(x+6)+4=7(x+5)+2 | | 2(w+7)+2w=114 | | 18t-26=18t+12 | | 4y^3+5y^2-1=0 | | 5*n+1=3 | | -8a-5b=22 | | cos*x+0.25=sin*x | | 4(5x+2)-2(4x+2)=7x+29 | | 4+13x-2=9x+46-7x | | 4(x-7)+16=0 | | 8=12w+3 | | 4(x-7)+10=0 | | 2(x)= | | 8x-12=4x*24 |

Equations solver categories