64=-4a-5(2a+4)

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Solution for 64=-4a-5(2a+4) equation:


Simplifying
64 = -4a + -5(2a + 4)

Reorder the terms:
64 = -4a + -5(4 + 2a)
64 = -4a + (4 * -5 + 2a * -5)
64 = -4a + (-20 + -10a)

Reorder the terms:
64 = -20 + -4a + -10a

Combine like terms: -4a + -10a = -14a
64 = -20 + -14a

Solving
64 = -20 + -14a

Solving for variable 'a'.

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

Add '14a' to each side of the equation.
64 + 14a = -20 + -14a + 14a

Combine like terms: -14a + 14a = 0
64 + 14a = -20 + 0
64 + 14a = -20

Add '-64' to each side of the equation.
64 + -64 + 14a = -20 + -64

Combine like terms: 64 + -64 = 0
0 + 14a = -20 + -64
14a = -20 + -64

Combine like terms: -20 + -64 = -84
14a = -84

Divide each side by '14'.
a = -6

Simplifying
a = -6

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