find the solution set

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pvaqlzpoebbz

Mathematics

Description

0.4(x+50) +0.8x=56

Find the solution and determine if it is the following:

A. the solution set is_______

B.The solution is all real numbers

C. The solution is an empty set

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Explanation & Answer

0.4x + 20 + 0.8x = 56

1.2x = 56 - 20

1.2 x = 36

x = 30

A. the solution set is x = 30


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