The opposite of 10 is greater than the sum of twice a number and 5

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.