7w-21=2(w+2)

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


Simplifying
7w + -21 = 2(w + 2)

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

Reorder the terms:
-21 + 7w = 2(2 + w)
-21 + 7w = (2 * 2 + w * 2)
-21 + 7w = (4 + 2w)

Solving
-21 + 7w = 4 + 2w

Solving for variable 'w'.

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

Add '-2w' to each side of the equation.
-21 + 7w + -2w = 4 + 2w + -2w

Combine like terms: 7w + -2w = 5w
-21 + 5w = 4 + 2w + -2w

Combine like terms: 2w + -2w = 0
-21 + 5w = 4 + 0
-21 + 5w = 4

Add '21' to each side of the equation.
-21 + 21 + 5w = 4 + 21

Combine like terms: -21 + 21 = 0
0 + 5w = 4 + 21
5w = 4 + 21

Combine like terms: 4 + 21 = 25
5w = 25

Divide each side by '5'.
w = 5

Simplifying
w = 5

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