The inverse of this function is not a function and this function isn’t inversable because it’s not one to one
The answer is x=1/2 or 0.5
If you there isn't enough digits to place, just add zeroes to product to make it a full product or don't even use a decimal point at all.
The easiest way to solve this is by elimination.
3x - y = 6
6x + y = 21
Since you have a negative and positive y with the same coefficients (1), they cancel, and you add the other terms so it would look like:
9x = 27
Then solving for x leaves you with x = 3
Then you take the x value of three and plug it into to either of the equations, so
3(3) - y = 6
9 - y = 6
subtracting 9
-y = -3
then dividing by -1
y = 3
so the solution is x = 3 y = 3 or (3,3)
