beatriz233 beatriz233

28-11-2018
Mathematics

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Someone help me on this.

Someone help me on this class=

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itmye84 itmye84

28-11-2018

[tex]\frac{f}{5}=\frac{f+3}{20}[/tex] Cross multiply. (multiply 5 on both sides, and multiply 20 on both sides)

(20)f = 5(f + 3) Multiply 5 into (f + 3)

20f = 5f + 15 Subtract 5f on both sides

15f = 15 Divide 15 on both sides to get "f" by itself

f = 1

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