2c+7d-4(8c-5d)=0

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Solution for 2c+7d-4(8c-5d)=0 equation:


Simplifying
2c + 7d + -4(8c + -5d) = 0
2c + 7d + (8c * -4 + -5d * -4) = 0
2c + 7d + (-32c + 20d) = 0

Reorder the terms:
2c + -32c + 7d + 20d = 0

Combine like terms: 2c + -32c = -30c
-30c + 7d + 20d = 0

Combine like terms: 7d + 20d = 27d
-30c + 27d = 0

Solving
-30c + 27d = 0

Solving for variable 'c'.

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

Add '-27d' to each side of the equation.
-30c + 27d + -27d = 0 + -27d

Combine like terms: 27d + -27d = 0
-30c + 0 = 0 + -27d
-30c = 0 + -27d
Remove the zero:
-30c = -27d

Divide each side by '-30'.
c = 0.9d

Simplifying
c = 0.9d

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