3r-4.5=7.5

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Solution for 3r-4.5=7.5 equation:



3r-4.5=7.5
We move all terms to the left:
3r-4.5-(7.5)=0
We add all the numbers together, and all the variables
3r-12=0
We move all terms containing r to the left, all other terms to the right
3r=12
r=12/3
r=4

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