d+2+r-2=100

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Solution for d+2+r-2=100 equation: 


Simplifying
d + 2 + r + -2 = 100

Reorder the terms:
2 + -2 + d + r = 100

Combine like terms: 2 + -2 = 0
0 + d + r = 100
d + r = 100

Solving
d + r = 100

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.
d + r + -1r = 100 + -1r

Combine like terms: r + -1r = 0
d + 0 = 100 + -1r
d = 100 + -1r

Simplifying
d = 100 + -1r

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