Y=(5-x)(x+1)

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Solution for Y=(5-x)(x+1) equation: 


Simplifying
Y = (5 + -1x)(x + 1)

Reorder the terms:
Y = (5 + -1x)(1 + x)

Multiply (5 + -1x) * (1 + x)
Y = (5(1 + x) + -1x * (1 + x))
Y = ((1 * 5 + x * 5) + -1x * (1 + x))
Y = ((5 + 5x) + -1x * (1 + x))
Y = (5 + 5x + (1 * -1x + x * -1x))
Y = (5 + 5x + (-1x + -1x2))

Combine like terms: 5x + -1x = 4x
Y = (5 + 4x + -1x2)

Solving
Y = 5 + 4x + -1x2

Solving for variable 'Y'.

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

Simplifying
Y = 5 + 4x + -1x2

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