2r+10-10=100-10

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Solution for 2r+10-10=100-10 equation: 


Simplifying
2r + 10 + -10 = 100 + -10

Reorder the terms:
10 + -10 + 2r = 100 + -10

Combine like terms: 10 + -10 = 0
0 + 2r = 100 + -10
2r = 100 + -10

Combine like terms: 100 + -10 = 90
2r = 90

Solving
2r = 90

Solving for variable 'r'.

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

Divide each side by '2'.
r = 45

Simplifying
r = 45

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