2(r-5)=42

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Solution for 2(r-5)=42 equation: 


Simplifying
2(r + -5) = 42

Reorder the terms:
2(-5 + r) = 42
(-5 * 2 + r * 2) = 42
(-10 + 2r) = 42

Solving
-10 + 2r = 42

Solving for variable 'r'.

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

Add '10' to each side of the equation.
-10 + 10 + 2r = 42 + 10

Combine like terms: -10 + 10 = 0
0 + 2r = 42 + 10
2r = 42 + 10

Combine like terms: 42 + 10 = 52
2r = 52

Divide each side by '2'.
r = 26

Simplifying
r = 26

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