7(w-3)-4w=4w-21

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Solution for 7(w-3)-4w=4w-21 equation:


Simplifying
7(w + -3) + -4w = 4w + -21

Reorder the terms:
7(-3 + w) + -4w = 4w + -21
(-3 * 7 + w * 7) + -4w = 4w + -21
(-21 + 7w) + -4w = 4w + -21

Combine like terms: 7w + -4w = 3w
-21 + 3w = 4w + -21

Reorder the terms:
-21 + 3w = -21 + 4w

Add '21' to each side of the equation.
-21 + 21 + 3w = -21 + 21 + 4w

Combine like terms: -21 + 21 = 0
0 + 3w = -21 + 21 + 4w
3w = -21 + 21 + 4w

Combine like terms: -21 + 21 = 0
3w = 0 + 4w
3w = 4w

Solving
3w = 4w

Solving for variable 'w'.

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

Add '-4w' to each side of the equation.
3w + -4w = 4w + -4w

Combine like terms: 3w + -4w = -1w
-1w = 4w + -4w

Combine like terms: 4w + -4w = 0
-1w = 0

Divide each side by '-1'.
w = 0

Simplifying
w = 0

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