Julio says, "If you subtract 17 from my number and multiply the difference by - 3, the result is - 36." What is Julio's number?
2 answers:
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Answer:
Step-by-step explanation:
For this exercise you need to remember:
1) The mulitplication of signs:
2) By definition, like terms contain the same variables with the same exponent.
Then knowing this, and given the equations:
and
You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.
Then, you get the result is: