Each method works diffrently the angles inside them is what matters.
X
X-15
X-15 + x = 83
2x = 98
X = 49
X-15 = 34
49 and 34 is the answer
The first, x=1 and y=5
The second, x=1 and y=2
Just keeping going with 16×-2=?×-2=?×-2 untill u get you your ninth nuber as well with tge 2 is a negative, so a a positive × a negative equal a negative and a negative × a negative equal
5x means 5 times x where x is some placeholder for a number. To get the inverse, we undo the multiplication. Division is the opposite of multiplication. So we'll divide both sides by 5 as one of the steps. Also, we'll swap x and y
y = 5x
x = 5y ... swap x and y
5y = x
5y/5 = x/5 .... divide both sides by 5
y = x/5
So this means the inverse function is equal to x/5