9(w-7)=8(w-9)

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Solution for 9(w-7)=8(w-9) equation:


Simplifying
9(w + -7) = 8(w + -9)

Reorder the terms:
9(-7 + w) = 8(w + -9)
(-7 * 9 + w * 9) = 8(w + -9)
(-63 + 9w) = 8(w + -9)

Reorder the terms:
-63 + 9w = 8(-9 + w)
-63 + 9w = (-9 * 8 + w * 8)
-63 + 9w = (-72 + 8w)

Solving
-63 + 9w = -72 + 8w

Solving for variable 'w'.

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

Add '-8w' to each side of the equation.
-63 + 9w + -8w = -72 + 8w + -8w

Combine like terms: 9w + -8w = 1w
-63 + 1w = -72 + 8w + -8w

Combine like terms: 8w + -8w = 0
-63 + 1w = -72 + 0
-63 + 1w = -72

Add '63' to each side of the equation.
-63 + 63 + 1w = -72 + 63

Combine like terms: -63 + 63 = 0
0 + 1w = -72 + 63
1w = -72 + 63

Combine like terms: -72 + 63 = -9
1w = -9

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

Simplifying
w = -9

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