y=(9x+7)(x-4)

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Solution for y=(9x+7)(x-4) equation: 


Simplifying
y = (9x + 7)(x + -4)

Reorder the terms:
y = (7 + 9x)(x + -4)

Reorder the terms:
y = (7 + 9x)(-4 + x)

Multiply (7 + 9x) * (-4 + x)
y = (7(-4 + x) + 9x * (-4 + x))
y = ((-4 * 7 + x * 7) + 9x * (-4 + x))
y = ((-28 + 7x) + 9x * (-4 + x))
y = (-28 + 7x + (-4 * 9x + x * 9x))
y = (-28 + 7x + (-36x + 9x2))

Combine like terms: 7x + -36x = -29x
y = (-28 + -29x + 9x2)

Solving
y = -28 + -29x + 9x2

Solving for variable 'y'.

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

Simplifying
y = -28 + -29x + 9x2

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