Answer:
x = 6
Explanation:
ok so if we take the properties of a square we know that each side will be the same length. We can use this info to set up an equation like so:
7x - 10 = 5x + 2
Now let's solve:
7x - 10 = 5x + 2
Add 10 to each side:
7x = 5x + 12
subtract 5x from each side:
2x = 12
Divide each side by 2:
x = 6
You can check by substituting:
7x - 10 = 5x + 2
7 ( 6 ) - 10 = 5 ( 6 ) + 2
42 - 10 = 30 + 2
32 = 32