A negative number added to a positive number can sum up to either a positive number, negative number or zero, depending on the size of the two numbers added together. When a positive number is added to a negative number of equal size, they will essentially cancel out each other and sum to zero.
Know MoreIf a large negative number is added to a small positive number, such as -10 and 1, the answer will be a negative number, which is -9 in this case. Similarly, a large positive number added to a small negative number will result in a positive number. This is unlike multiplication in which a negative number multiplied by a positive number will always result in a negative number.
Learn more about AlgebraThe sum of all the positive integer factors of 12 is 28. The positive integer factors of 12 are 1, 2, 3, 4, 6 and 12, and when added together, these terms are equal to 28.
Full Answer >Some facts about the number 18 are that it is the only positive number that is equal to the sum of the digits multiplied by two, it is the atomic number of Argon and there are 18 holes on most golf courses. The number 18 is also the age at which United States citizens are legally allowed to vote.
Full Answer >Multiplying two numbers with like signs, either two positive numbers or two negative numbers, yields a positive number. Numbers not preceded by a sign are considered positive. Those numbers preceded by a minus sign, sometimes surrounded by parenthesis, are negative numbers.
Full Answer >"3 times the sum of a number and 5" written as an algebraic expression would be 3(x+5). The process of writing this as an algebraic equation has two parts: forming the base equation and determining what operation to perform on the base equation.
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