Answer: x+9= -7
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