9+0.5r=12

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Solution for 9+0.5r=12 equation:


Simplifying
9 + 0.5r = 12

Solving
9 + 0.5r = 12

Solving for variable 'r'.

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

Add '-9' to each side of the equation.
9 + -9 + 0.5r = 12 + -9

Combine like terms: 9 + -9 = 0
0 + 0.5r = 12 + -9
0.5r = 12 + -9

Combine like terms: 12 + -9 = 3
0.5r = 3

Divide each side by '0.5'.
r = 6

Simplifying
r = 6

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