(w+4)(3w+7)-w(3w+3)=

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Solution for (w+4)(3w+7)-w(3w+3)= equation:


Simplifying
(w + 4)(3w + 7) + -1w(3w + 3) = 0

Reorder the terms:
(4 + w)(3w + 7) + -1w(3w + 3) = 0

Reorder the terms:
(4 + w)(7 + 3w) + -1w(3w + 3) = 0

Multiply (4 + w) * (7 + 3w)
(4(7 + 3w) + w(7 + 3w)) + -1w(3w + 3) = 0
((7 * 4 + 3w * 4) + w(7 + 3w)) + -1w(3w + 3) = 0
((28 + 12w) + w(7 + 3w)) + -1w(3w + 3) = 0
(28 + 12w + (7 * w + 3w * w)) + -1w(3w + 3) = 0
(28 + 12w + (7w + 3w2)) + -1w(3w + 3) = 0

Combine like terms: 12w + 7w = 19w
(28 + 19w + 3w2) + -1w(3w + 3) = 0

Reorder the terms:
28 + 19w + 3w2 + -1w(3 + 3w) = 0
28 + 19w + 3w2 + (3 * -1w + 3w * -1w) = 0
28 + 19w + 3w2 + (-3w + -3w2) = 0

Reorder the terms:
28 + 19w + -3w + 3w2 + -3w2 = 0

Combine like terms: 19w + -3w = 16w
28 + 16w + 3w2 + -3w2 = 0

Combine like terms: 3w2 + -3w2 = 0
28 + 16w + 0 = 0
28 + 16w = 0

Solving
28 + 16w = 0

Solving for variable 'w'.

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

Add '-28' to each side of the equation.
28 + -28 + 16w = 0 + -28

Combine like terms: 28 + -28 = 0
0 + 16w = 0 + -28
16w = 0 + -28

Combine like terms: 0 + -28 = -28
16w = -28

Divide each side by '16'.
w = -1.75

Simplifying
w = -1.75

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