3(a+4)-8=4a-5

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Solution for 3(a+4)-8=4a-5 equation:


Simplifying
3(a + 4) + -8 = 4a + -5

Reorder the terms:
3(4 + a) + -8 = 4a + -5
(4 * 3 + a * 3) + -8 = 4a + -5
(12 + 3a) + -8 = 4a + -5

Reorder the terms:
12 + -8 + 3a = 4a + -5

Combine like terms: 12 + -8 = 4
4 + 3a = 4a + -5

Reorder the terms:
4 + 3a = -5 + 4a

Solving
4 + 3a = -5 + 4a

Solving for variable 'a'.

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

Add '-4a' to each side of the equation.
4 + 3a + -4a = -5 + 4a + -4a

Combine like terms: 3a + -4a = -1a
4 + -1a = -5 + 4a + -4a

Combine like terms: 4a + -4a = 0
4 + -1a = -5 + 0
4 + -1a = -5

Add '-4' to each side of the equation.
4 + -4 + -1a = -5 + -4

Combine like terms: 4 + -4 = 0
0 + -1a = -5 + -4
-1a = -5 + -4

Combine like terms: -5 + -4 = -9
-1a = -9

Divide each side by '-1'.
a = 9

Simplifying
a = 9

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