A wholesaler sold an article to a retailer at a profit of 15%. What is the cost of wholesaler.
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plz tell some more details these are nat enough to solve this problem.
Step-by-step explanation:
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In the substitution method you solve for one variable, and then substitute that expression into the other equation. The important thing here is that you are always substituting values that are equivalent. For example: Sean is 5 years older than four times his daughter's age
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