9(w-9)-(7w-1)=w

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Solution for 9(w-9)-(7w-1)=w equation:


Simplifying
9(w + -9) + -1(7w + -1) = w

Reorder the terms:
9(-9 + w) + -1(7w + -1) = w
(-9 * 9 + w * 9) + -1(7w + -1) = w
(-81 + 9w) + -1(7w + -1) = w

Reorder the terms:
-81 + 9w + -1(-1 + 7w) = w
-81 + 9w + (-1 * -1 + 7w * -1) = w
-81 + 9w + (1 + -7w) = w

Reorder the terms:
-81 + 1 + 9w + -7w = w

Combine like terms: -81 + 1 = -80
-80 + 9w + -7w = w

Combine like terms: 9w + -7w = 2w
-80 + 2w = w

Solving
-80 + 2w = w

Solving for variable 'w'.

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

Add '-1w' to each side of the equation.
-80 + 2w + -1w = w + -1w

Combine like terms: 2w + -1w = 1w
-80 + 1w = w + -1w

Combine like terms: w + -1w = 0
-80 + 1w = 0

Add '80' to each side of the equation.
-80 + 80 + 1w = 0 + 80

Combine like terms: -80 + 80 = 0
0 + 1w = 0 + 80
1w = 0 + 80

Combine like terms: 0 + 80 = 80
1w = 80

Divide each side by '1'.
w = 80

Simplifying
w = 80

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