a=45-(4a+15)

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Solution for a=45-(4a+15) equation:


Simplifying
a = 45 + -1(4a + 15)

Reorder the terms:
a = 45 + -1(15 + 4a)
a = 45 + (15 * -1 + 4a * -1)
a = 45 + (-15 + -4a)

Combine like terms: 45 + -15 = 30
a = 30 + -4a

Solving
a = 30 + -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.
a + 4a = 30 + -4a + 4a

Combine like terms: a + 4a = 5a
5a = 30 + -4a + 4a

Combine like terms: -4a + 4a = 0
5a = 30 + 0
5a = 30

Divide each side by '5'.
a = 6

Simplifying
a = 6

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