3[7-(2w+4)]-15=2(5-w)

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Solution for 3[7-(2w+4)]-15=2(5-w) equation:


Simplifying
3[7 + -1(2w + 4)] + -15 = 2(5 + -1w)

Reorder the terms:
3[7 + -1(4 + 2w)] + -15 = 2(5 + -1w)
3[7 + (4 * -1 + 2w * -1)] + -15 = 2(5 + -1w)
3[7 + (-4 + -2w)] + -15 = 2(5 + -1w)

Combine like terms: 7 + -4 = 3
3[3 + -2w] + -15 = 2(5 + -1w)
[3 * 3 + -2w * 3] + -15 = 2(5 + -1w)
[9 + -6w] + -15 = 2(5 + -1w)

Reorder the terms:
9 + -15 + -6w = 2(5 + -1w)

Combine like terms: 9 + -15 = -6
-6 + -6w = 2(5 + -1w)
-6 + -6w = (5 * 2 + -1w * 2)
-6 + -6w = (10 + -2w)

Solving
-6 + -6w = 10 + -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.
-6 + -6w + 2w = 10 + -2w + 2w

Combine like terms: -6w + 2w = -4w
-6 + -4w = 10 + -2w + 2w

Combine like terms: -2w + 2w = 0
-6 + -4w = 10 + 0
-6 + -4w = 10

Add '6' to each side of the equation.
-6 + 6 + -4w = 10 + 6

Combine like terms: -6 + 6 = 0
0 + -4w = 10 + 6
-4w = 10 + 6

Combine like terms: 10 + 6 = 16
-4w = 16

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

Simplifying
w = -4

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