answer: 4u - 15
work: 20[(1/5)U- (3/4)]
= ( )U - ()
= (4)U - (5 x 3)
= 4u - 15
Answer:
4u-15
So, you multiply 20×1/5u giving you 4u. Then you would to the same but with -3/4 giving you -15. You can't go any farther because they don't have the same variables. So your answer is 4u-15
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