(9+w)(3w-7)=0

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Solution for (9+w)(3w-7)=0 equation: 


Simplifying
(9 + w)(3w + -7) = 0

Reorder the terms:
(9 + w)(-7 + 3w) = 0

Multiply (9 + w) * (-7 + 3w)
(9(-7 + 3w) + w(-7 + 3w)) = 0
((-7 * 9 + 3w * 9) + w(-7 + 3w)) = 0
((-63 + 27w) + w(-7 + 3w)) = 0
(-63 + 27w + (-7 * w + 3w * w)) = 0
(-63 + 27w + (-7w + 3w2)) = 0

Combine like terms: 27w + -7w = 20w
(-63 + 20w + 3w2) = 0

Solving
-63 + 20w + 3w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-9 + -1w)(7 + -3w) = 0


Subproblem 1
Set the factor '(-9 + -1w)' equal to zero and attempt to solve:

Simplifying
-9 + -1w = 0

Solving
-9 + -1w = 0

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

Add '9' to each side of the equation.
-9 + 9 + -1w = 0 + 9

Combine like terms: -9 + 9 = 0
0 + -1w = 0 + 9
-1w = 0 + 9

Combine like terms: 0 + 9 = 9
-1w = 9

Divide each side by '-1'.
w = -9

Simplifying
w = -9

Subproblem 2
Set the factor '(7 + -3w)' equal to zero and attempt to solve:

Simplifying
7 + -3w = 0

Solving
7 + -3w = 0

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

Add '-7' to each side of the equation.
7 + -7 + -3w = 0 + -7

Combine like terms: 7 + -7 = 0
0 + -3w = 0 + -7
-3w = 0 + -7

Combine like terms: 0 + -7 = -7
-3w = -7

Divide each side by '-3'.
w = 2.333333333

Simplifying
w = 2.333333333
Solution
w = {-9, 2.333333333}

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