9r-14=42+2r

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Solution for 9r-14=42+2r equation:


Simplifying
9r + -14 = 42 + 2r

Reorder the terms:
-14 + 9r = 42 + 2r

Solving
-14 + 9r = 42 + 2r

Solving for variable 'r'.

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

Add '-2r' to each side of the equation.
-14 + 9r + -2r = 42 + 2r + -2r

Combine like terms: 9r + -2r = 7r
-14 + 7r = 42 + 2r + -2r

Combine like terms: 2r + -2r = 0
-14 + 7r = 42 + 0
-14 + 7r = 42

Add '14' to each side of the equation.
-14 + 14 + 7r = 42 + 14

Combine like terms: -14 + 14 = 0
0 + 7r = 42 + 14
7r = 42 + 14

Combine like terms: 42 + 14 = 56
7r = 56

Divide each side by '7'.
r = 8

Simplifying
r = 8

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