Step-by-step explanation:
To get the inverse, swap the x- and y-variables, then solve for y. We should have the equation:
Solving for y:
because or
So on interchanging the variable, we get the equation:
So, Jerome bought a total of 80 cards (8x10) out of which he gave out 30 cards (3x10) so he has 50 cards left. (80-30)
Answer:
x=2 and x=-10 are the solutions that you should get by using the quadratic formula.
if there is more than 1 x u add the exes but you dont add the exes with the other numbers so in this case you would do 7 x 2/3 and you would leave the x alone