To find 5x when 7x = 49, you can use a proportion.
7x = 49
Divide both sides by 7:
x = 7
Now that you know x is 7, you can find 5x:
5x = 5(7) = 35
Therefore, if 7x = 49, then 5x = 35.
If 7x = 49 find 5x.
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