2w+21=6w-7

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Solution for 2w+21=6w-7 equation:


Simplifying
2w + 21 = 6w + -7

Reorder the terms:
21 + 2w = 6w + -7

Reorder the terms:
21 + 2w = -7 + 6w

Solving
21 + 2w = -7 + 6w

Solving for variable 'w'.

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

Add '-6w' to each side of the equation.
21 + 2w + -6w = -7 + 6w + -6w

Combine like terms: 2w + -6w = -4w
21 + -4w = -7 + 6w + -6w

Combine like terms: 6w + -6w = 0
21 + -4w = -7 + 0
21 + -4w = -7

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

Combine like terms: 21 + -21 = 0
0 + -4w = -7 + -21
-4w = -7 + -21

Combine like terms: -7 + -21 = -28
-4w = -28

Divide each side by '-4'.
w = 7

Simplifying
w = 7

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