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

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


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

Reorder the terms:
4(-2 + a) = (a + 7)
(-2 * 4 + a * 4) = (a + 7)
(-8 + 4a) = (a + 7)

Reorder the terms:
-8 + 4a = (7 + a)

Remove parenthesis around (7 + a)
-8 + 4a = 7 + a

Solving
-8 + 4a = 7 + a

Solving for variable 'a'.

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

Add '-1a' to each side of the equation.
-8 + 4a + -1a = 7 + a + -1a

Combine like terms: 4a + -1a = 3a
-8 + 3a = 7 + a + -1a

Combine like terms: a + -1a = 0
-8 + 3a = 7 + 0
-8 + 3a = 7

Add '8' to each side of the equation.
-8 + 8 + 3a = 7 + 8

Combine like terms: -8 + 8 = 0
0 + 3a = 7 + 8
3a = 7 + 8

Combine like terms: 7 + 8 = 15
3a = 15

Divide each side by '3'.
a = 5

Simplifying
a = 5

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