How to solve system of equations?
x+4y=4, -x-4y=-4

i got 0,0, which is infinitely many solutions, but it's asking me to find the solutions in regards to y. i found it through x so i'm confused.

7x+8y=-18, 4x-9y=-3 solve the system of equations

The variable in a relation who’s value depends on the value of the independent variable is called what?

Dakota earned $7.50 in interest in account a and $18.75 in interest in account b after 15 months. if the simple interest rate is 4% for account a and 5% for account b, which account has the greater principal? explain. to make it a little easier, there is an image. good luck!