7a+5=4(a-4)+18

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Solution for 7a+5=4(a-4)+18 equation:


Simplifying
7a + 5 = 4(a + -4) + 18

Reorder the terms:
5 + 7a = 4(a + -4) + 18

Reorder the terms:
5 + 7a = 4(-4 + a) + 18
5 + 7a = (-4 * 4 + a * 4) + 18
5 + 7a = (-16 + 4a) + 18

Reorder the terms:
5 + 7a = -16 + 18 + 4a

Combine like terms: -16 + 18 = 2
5 + 7a = 2 + 4a

Solving
5 + 7a = 2 + 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.
5 + 7a + -4a = 2 + 4a + -4a

Combine like terms: 7a + -4a = 3a
5 + 3a = 2 + 4a + -4a

Combine like terms: 4a + -4a = 0
5 + 3a = 2 + 0
5 + 3a = 2

Add '-5' to each side of the equation.
5 + -5 + 3a = 2 + -5

Combine like terms: 5 + -5 = 0
0 + 3a = 2 + -5
3a = 2 + -5

Combine like terms: 2 + -5 = -3
3a = -3

Divide each side by '3'.
a = -1

Simplifying
a = -1

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