2x+5
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Let's call "a number" x. Then 5 more than twice x is 5 + 2x.
Let the number be x and so if 2x+5 = -55 then the value of x is -30
The expression "eight more than twice a number" can be written as 2x + 8, where x represents the unknown number. This expression indicates that you should first multiply the number by 2 and then add 8 to the result. For example, if the number is 5, then 2(5) + 8 = 10 + 8 = 18.
Given a number N, you would have: 2*N - 5
5+5=1010-7=3the answer is 3