(7a)2+(3a)2=29*29

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Solution for (7a)2+(3a)2=29*29 equation:


Simplifying
(7a) * 2 + (3a) * 2 = 29 * 29

Remove parenthesis around (7a)
7a * 2 + (3a) * 2 = 29 * 29

Reorder the terms for easier multiplication:
7 * 2a + (3a) * 2 = 29 * 29

Multiply 7 * 2
14a + (3a) * 2 = 29 * 29

Remove parenthesis around (3a)
14a + 3a * 2 = 29 * 29

Reorder the terms for easier multiplication:
14a + 3 * 2a = 29 * 29

Multiply 3 * 2
14a + 6a = 29 * 29

Combine like terms: 14a + 6a = 20a
20a = 29 * 29

Multiply 29 * 29
20a = 841

Solving
20a = 841

Solving for variable 'a'.

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

Divide each side by '20'.
a = 42.05

Simplifying
a = 42.05

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