-10/-16 could be an answer or multiply the same number up and down but the number must be negative
1)

2)

Here, the variable

can assume any value, and usually an inequality presented like this has

as a stand-in for all real numbers. If we really wanted to make that fact clear, we could write the two inequalities like this:

Formally, you'd read

as "

is an element of the set of real numbers," which is a fancy way of saying that

can be any real number.
Answer:
x int (4,0)
y int (0, -6)
Step-by-step explanation:
Answer:
x=3
Step-by-step explanation:
15-7x=5x-21
12x=36
x=3