s=(27-b)(20+b)

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Solution for s=(27-b)(20+b) equation:


Simplifying
s = (27 + -1b)(20 + b)

Multiply (27 + -1b) * (20 + b)
s = (27(20 + b) + -1b * (20 + b))
s = ((20 * 27 + b * 27) + -1b * (20 + b))
s = ((540 + 27b) + -1b * (20 + b))
s = (540 + 27b + (20 * -1b + b * -1b))
s = (540 + 27b + (-20b + -1b2))

Combine like terms: 27b + -20b = 7b
s = (540 + 7b + -1b2)

Solving
s = 540 + 7b + -1b2

Solving for variable 's'.

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

Simplifying
s = 540 + 7b + -1b2

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