3(a+4)-2a=7(a+6)

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Solution for 3(a+4)-2a=7(a+6) equation:


Simplifying
3(a + 4) + -2a = 7(a + 6)

Reorder the terms:
3(4 + a) + -2a = 7(a + 6)
(4 * 3 + a * 3) + -2a = 7(a + 6)
(12 + 3a) + -2a = 7(a + 6)

Combine like terms: 3a + -2a = 1a
12 + 1a = 7(a + 6)

Reorder the terms:
12 + 1a = 7(6 + a)
12 + 1a = (6 * 7 + a * 7)
12 + 1a = (42 + 7a)

Solving
12 + 1a = 42 + 7a

Solving for variable 'a'.

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

Add '-7a' to each side of the equation.
12 + 1a + -7a = 42 + 7a + -7a

Combine like terms: 1a + -7a = -6a
12 + -6a = 42 + 7a + -7a

Combine like terms: 7a + -7a = 0
12 + -6a = 42 + 0
12 + -6a = 42

Add '-12' to each side of the equation.
12 + -12 + -6a = 42 + -12

Combine like terms: 12 + -12 = 0
0 + -6a = 42 + -12
-6a = 42 + -12

Combine like terms: 42 + -12 = 30
-6a = 30

Divide each side by '-6'.
a = -5

Simplifying
a = -5

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