3w+31=7(w+9)

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Solution for 3w+31=7(w+9) equation:


Simplifying
3w + 31 = 7(w + 9)

Reorder the terms:
31 + 3w = 7(w + 9)

Reorder the terms:
31 + 3w = 7(9 + w)
31 + 3w = (9 * 7 + w * 7)
31 + 3w = (63 + 7w)

Solving
31 + 3w = 63 + 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.
31 + 3w + -7w = 63 + 7w + -7w

Combine like terms: 3w + -7w = -4w
31 + -4w = 63 + 7w + -7w

Combine like terms: 7w + -7w = 0
31 + -4w = 63 + 0
31 + -4w = 63

Add '-31' to each side of the equation.
31 + -31 + -4w = 63 + -31

Combine like terms: 31 + -31 = 0
0 + -4w = 63 + -31
-4w = 63 + -31

Combine like terms: 63 + -31 = 32
-4w = 32

Divide each side by '-4'.
w = -8

Simplifying
w = -8

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