4r-4d+4r-9d=

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Solution for 4r-4d+4r-9d= equation:


Simplifying
4r + -4d + 4r + -9d = 0

Reorder the terms:
-4d + -9d + 4r + 4r = 0

Combine like terms: -4d + -9d = -13d
-13d + 4r + 4r = 0

Combine like terms: 4r + 4r = 8r
-13d + 8r = 0

Solving
-13d + 8r = 0

Solving for variable 'd'.

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

Add '-8r' to each side of the equation.
-13d + 8r + -8r = 0 + -8r

Combine like terms: 8r + -8r = 0
-13d + 0 = 0 + -8r
-13d = 0 + -8r
Remove the zero:
-13d = -8r

Divide each side by '-13'.
d = 0.6153846154r

Simplifying
d = 0.6153846154r

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