plus
For example:
(+15) + (+1) = +16 or 16
But minus plus minus is equals to minus itself
For example:
(- 8) - (- 4) = - 4
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Add them together. They equal 2n.
4b plus 7b plus 5 will equal 11b plus 5. When you have two variables that are the same you can add the two numbers with the variables remaining the same.
so if you add 1 to 1 its 2
The word 'sum' means you need to add. If you add 1.22 and 2.3 you get 3.52.
The answer is 156. Simply add the numbers together like you would for two plus two. To check your work, a calculator is the best option.