SOLUTION: solving rational expressions and equations 7 over 8 + 2 over 5 = x over 20 show work

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Question 43355: solving rational expressions and equations

7 over 8 + 2 over 5 = x over 20
show work
Answer by fractalier(6550) About Me  (Show Source):
You can put this solution on YOUR website!
The first step in solving almost all fractional equations is to multiply all the terms by the lowest common denominator...here that is 40...so we get
7/8 + 2/5 = x/20
40(7/8 + 2/5 = x/20)
35 + 16 = 2x
2x = 51
x = 51/2