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(2r-8)-1/2(9-4r)+5/2
Remove parentheses:
2r-8-1/2(9-4r)+5/2
Multiply:
2r-8- 9-4r/2 + 5/2
Convert element to fraction:
2r/1-8/1-9-4r/2+5/2
Adjust fractions based on LCM:
4r/2-16/2-9-4r/2+5/2
Since the denominaters are equal combine the fractions:
4r-16-(9-4r)+5
Expand:
8r-20/2
Factor:
4(2r-5)/2
Divide the numbers:
2(2r-5)
Your Answer Is 2(2r-5)
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