9w-31=-7(w-7)

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Solution for 9w-31=-7(w-7) equation:


Simplifying
9w + -31 = -7(w + -7)

Reorder the terms:
-31 + 9w = -7(w + -7)

Reorder the terms:
-31 + 9w = -7(-7 + w)
-31 + 9w = (-7 * -7 + w * -7)
-31 + 9w = (49 + -7w)

Solving
-31 + 9w = 49 + -7w

Solving for variable 'w'.

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

Add '7w' to each side of the equation.
-31 + 9w + 7w = 49 + -7w + 7w

Combine like terms: 9w + 7w = 16w
-31 + 16w = 49 + -7w + 7w

Combine like terms: -7w + 7w = 0
-31 + 16w = 49 + 0
-31 + 16w = 49

Add '31' to each side of the equation.
-31 + 31 + 16w = 49 + 31

Combine like terms: -31 + 31 = 0
0 + 16w = 49 + 31
16w = 49 + 31

Combine like terms: 49 + 31 = 80
16w = 80

Divide each side by '16'.
w = 5

Simplifying
w = 5

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