(7b)2+8+(3b)2=

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Solution for (7b)2+8+(3b)2= equation:


Simplifying
(7b) * 2 + 8 + (3b) * 2 = 0

Remove parenthesis around (7b)
7b * 2 + 8 + (3b) * 2 = 0

Reorder the terms for easier multiplication:
7 * 2b + 8 + (3b) * 2 = 0

Multiply 7 * 2
14b + 8 + (3b) * 2 = 0

Remove parenthesis around (3b)
14b + 8 + 3b * 2 = 0

Reorder the terms for easier multiplication:
14b + 8 + 3 * 2b = 0

Multiply 3 * 2
14b + 8 + 6b = 0

Reorder the terms:
8 + 14b + 6b = 0

Combine like terms: 14b + 6b = 20b
8 + 20b = 0

Solving
8 + 20b = 0

Solving for variable 'b'.

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

Add '-8' to each side of the equation.
8 + -8 + 20b = 0 + -8

Combine like terms: 8 + -8 = 0
0 + 20b = 0 + -8
20b = 0 + -8

Combine like terms: 0 + -8 = -8
20b = -8

Divide each side by '20'.
b = -0.4

Simplifying
b = -0.4

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