20a-64=4a+15

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Solution for 20a-64=4a+15 equation:


Simplifying
20a + -64 = 4a + 15

Reorder the terms:
-64 + 20a = 4a + 15

Reorder the terms:
-64 + 20a = 15 + 4a

Solving
-64 + 20a = 15 + 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.
-64 + 20a + -4a = 15 + 4a + -4a

Combine like terms: 20a + -4a = 16a
-64 + 16a = 15 + 4a + -4a

Combine like terms: 4a + -4a = 0
-64 + 16a = 15 + 0
-64 + 16a = 15

Add '64' to each side of the equation.
-64 + 64 + 16a = 15 + 64

Combine like terms: -64 + 64 = 0
0 + 16a = 15 + 64
16a = 15 + 64

Combine like terms: 15 + 64 = 79
16a = 79

Divide each side by '16'.
a = 4.9375

Simplifying
a = 4.9375

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