(4a+5)+7=

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Solution for (4a+5)+7= equation:


Simplifying
(4a + 5) + 7 = 0

Reorder the terms:
(5 + 4a) + 7 = 0

Remove parenthesis around (5 + 4a)
5 + 4a + 7 = 0

Reorder the terms:
5 + 7 + 4a = 0

Combine like terms: 5 + 7 = 12
12 + 4a = 0

Solving
12 + 4a = 0

Solving for variable 'a'.

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

Add '-12' to each side of the equation.
12 + -12 + 4a = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 4a = 0 + -12
4a = 0 + -12

Combine like terms: 0 + -12 = -12
4a = -12

Divide each side by '4'.
a = -3

Simplifying
a = -3

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