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Darian Olson
Mathematics
17 June, 06:43
Solve the equation
33=12r-3 (9-r)
+2
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2
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Carissa Hays
17 June, 06:58
0
r = 4
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Hanna Ashley
17 June, 07:03
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r = 4
Step-by-step explanation:
Our goal is to let the r alone on one side of the equation.
33 = 12r-3 (9-r)
First, let's distribute the 3 into the parenthesis:
33 = 12r - 3*9 - 3 * (-r)
33 = 12r - 27 + 3r
Now we add 27 on both sides of the equation
33 + 27 = 12r - 27 + 3r + 27
60 = 12r + 3r
Now that we only have terms with r on the right side, we can sum them
60 = 15r
We divide by 15 on both sides
60/15 = 15r/15
4 = r
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