b=(a+5)2-(a-5)2

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


Simplifying
b = (a + 5) * 2 + -1(a + -5) * 2

Reorder the terms:
b = (5 + a) * 2 + -1(a + -5) * 2

Reorder the terms for easier multiplication:
b = 2(5 + a) + -1(a + -5) * 2
b = (5 * 2 + a * 2) + -1(a + -5) * 2
b = (10 + 2a) + -1(a + -5) * 2

Reorder the terms:
b = 10 + 2a + -1(-5 + a) * 2

Reorder the terms for easier multiplication:
b = 10 + 2a + -1 * 2(-5 + a)

Multiply -1 * 2
b = 10 + 2a + -2(-5 + a)
b = 10 + 2a + (-5 * -2 + a * -2)
b = 10 + 2a + (10 + -2a)

Reorder the terms:
b = 10 + 10 + 2a + -2a

Combine like terms: 10 + 10 = 20
b = 20 + 2a + -2a

Combine like terms: 2a + -2a = 0
b = 20 + 0
b = 20

Solving
b = 20

Solving for variable 'b'.

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

Simplifying
b = 20

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