Y=(x+7)(x+3)

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Solution for Y=(x+7)(x+3) equation: 


Simplifying
Y = (x + 7)(x + 3)

Reorder the terms:
Y = (7 + x)(x + 3)

Reorder the terms:
Y = (7 + x)(3 + x)

Multiply (7 + x) * (3 + x)
Y = (7(3 + x) + x(3 + x))
Y = ((3 * 7 + x * 7) + x(3 + x))
Y = ((21 + 7x) + x(3 + x))
Y = (21 + 7x + (3 * x + x * x))
Y = (21 + 7x + (3x + x2))

Combine like terms: 7x + 3x = 10x
Y = (21 + 10x + x2)

Solving
Y = 21 + 10x + x2

Solving for variable 'Y'.

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

Simplifying
Y = 21 + 10x + x2

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