-2(3w+6)-(4w-3)=21

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Solution for -2(3w+6)-(4w-3)=21 equation:


Simplifying
-2(3w + 6) + -1(4w + -3) = 21

Reorder the terms:
-2(6 + 3w) + -1(4w + -3) = 21
(6 * -2 + 3w * -2) + -1(4w + -3) = 21
(-12 + -6w) + -1(4w + -3) = 21

Reorder the terms:
-12 + -6w + -1(-3 + 4w) = 21
-12 + -6w + (-3 * -1 + 4w * -1) = 21
-12 + -6w + (3 + -4w) = 21

Reorder the terms:
-12 + 3 + -6w + -4w = 21

Combine like terms: -12 + 3 = -9
-9 + -6w + -4w = 21

Combine like terms: -6w + -4w = -10w
-9 + -10w = 21

Solving
-9 + -10w = 21

Solving for variable 'w'.

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

Add '9' to each side of the equation.
-9 + 9 + -10w = 21 + 9

Combine like terms: -9 + 9 = 0
0 + -10w = 21 + 9
-10w = 21 + 9

Combine like terms: 21 + 9 = 30
-10w = 30

Divide each side by '-10'.
w = -3

Simplifying
w = -3

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