15=-3(2c+d)

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Solution for 15=-3(2c+d) equation:


Simplifying
15 = -3(2c + d)
15 = (2c * -3 + d * -3)
15 = (-6c + -3d)

Solving
15 = -6c + -3d

Solving for variable 'c'.

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

Add '6c' to each side of the equation.
15 + 6c = -6c + 6c + -3d

Combine like terms: -6c + 6c = 0
15 + 6c = 0 + -3d
15 + 6c = -3d

Add '-15' to each side of the equation.
15 + -15 + 6c = -15 + -3d

Combine like terms: 15 + -15 = 0
0 + 6c = -15 + -3d
6c = -15 + -3d

Divide each side by '6'.
c = -2.5 + -0.5d

Simplifying
c = -2.5 + -0.5d

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