What is the expression for "the difference of 3 and 5 times a number"
2 answers:
Answer: The required expression is .
Step-by-step explanation: We are given to write the following expression :
"the difference of 3 and 5 times a number".
Let the number be represented by x.
Then, 5 times x is written as 5x.
The difference of 3 and 5 times x ca be written as
.
Thus, the required expression is .
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The inequality would start out looking like this:
Now it's just a matter of solving the inequalities simultaneously. Get rid of the fraction by multiplying everything by 9:
Then distribute the 5 into the parenthesis:
Now add 160 everywhere:
and finally divide everything by 5:
-22<F<266
Now it's just a matter of solving the inequalities simultaneously. Get rid of the fraction by multiplying everything by 9:
Then distribute the 5 into the parenthesis:
Now add 160 everywhere:
and finally divide everything by 5:
-22<F<266