alexsandra120505
05.06.2020 •
Mathematics
The sum of a number and 9 is -7. What does that mean or what's the equation
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Ответ:
x+9= -7
Step-by-step explanation:
What this statement means is that the sum or combining/adding of 9 and another number gives you -7 as the answer. We can write an equation to figure out what the other number is.
Let's use x as the unknown/other number.
x+9= -7
That is what your set up equation would look like. To solve for x, you simply subtract 9 on both sides.
x=-16
Ответ:
the oranges are 2.50 per pound (2.50p) and you have a total of $20.
hope this helps :)