12-3(2w+1)=7w-3(7-w)

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Solution for 12-3(2w+1)=7w-3(7-w) equation:


Simplifying
12 + -3(2w + 1) = 7w + -3(7 + -1w)

Reorder the terms:
12 + -3(1 + 2w) = 7w + -3(7 + -1w)
12 + (1 * -3 + 2w * -3) = 7w + -3(7 + -1w)
12 + (-3 + -6w) = 7w + -3(7 + -1w)

Combine like terms: 12 + -3 = 9
9 + -6w = 7w + -3(7 + -1w)
9 + -6w = 7w + (7 * -3 + -1w * -3)
9 + -6w = 7w + (-21 + 3w)

Reorder the terms:
9 + -6w = -21 + 7w + 3w

Combine like terms: 7w + 3w = 10w
9 + -6w = -21 + 10w

Solving
9 + -6w = -21 + 10w

Solving for variable 'w'.

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

Add '-10w' to each side of the equation.
9 + -6w + -10w = -21 + 10w + -10w

Combine like terms: -6w + -10w = -16w
9 + -16w = -21 + 10w + -10w

Combine like terms: 10w + -10w = 0
9 + -16w = -21 + 0
9 + -16w = -21

Add '-9' to each side of the equation.
9 + -9 + -16w = -21 + -9

Combine like terms: 9 + -9 = 0
0 + -16w = -21 + -9
-16w = -21 + -9

Combine like terms: -21 + -9 = -30
-16w = -30

Divide each side by '-16'.
w = 1.875

Simplifying
w = 1.875

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