r+3d=45

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Solution for r+3d=45 equation: 


Simplifying
r + 3d = 45

Reorder the terms:
3d + r = 45

Solving
3d + r = 45

Solving for variable 'd'.

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

Add '-1r' to each side of the equation.
3d + r + -1r = 45 + -1r

Combine like terms: r + -1r = 0
3d + 0 = 45 + -1r
3d = 45 + -1r

Divide each side by '3'.
d = 15 + -0.3333333333r

Simplifying
d = 15 + -0.3333333333r

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