21=7(w-2)

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Solution for 21=7(w-2) equation:


Simplifying
21 = 7(w + -2)

Reorder the terms:
21 = 7(-2 + w)
21 = (-2 * 7 + w * 7)
21 = (-14 + 7w)

Solving
21 = -14 + 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.
21 + -7w = -14 + 7w + -7w

Combine like terms: 7w + -7w = 0
21 + -7w = -14 + 0
21 + -7w = -14

Add '-21' to each side of the equation.
21 + -21 + -7w = -14 + -21

Combine like terms: 21 + -21 = 0
0 + -7w = -14 + -21
-7w = -14 + -21

Combine like terms: -14 + -21 = -35
-7w = -35

Divide each side by '-7'.
w = 5

Simplifying
w = 5

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