
This is how to calculate "8 plus what equals 79?" In other words, 8 plus a number equals 79. What is that number? We start by converting this word problem into an equation where "what" is what we want to solve:
8 + what = 79
To solve this equation, we first add -8 to each side of the equal sign like this:
8 - 8 + what = 79 - 8
Then, we do the calculation to get the answer to "8 plus what equals 79?" as follows:
What = 71
The answer to "8 plus what equals 79?" is 71. You know this answer is correct because 8 plus 71 equals 79.
8 plus what equals 80?
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