How do you do elimination in algebra 2?

If a+b-c=d, if a-b+c=e, then a = ?

Bovine deposits $7,000 into an investment that pays 4% interest compounded quarterly. if she leaves it in the account for 9 years what is her balance

Without actually calculating, how much greater is the product of 98times 50 than the product 97 times 50

15-x=2 (x+3) I need this solved and show me how you solved it

Nani needs to buy 8 cups of fresh pineapple for a fruit cocktail. The table shows the unit prices (per cup) of pineapple at different stores. If Nani only has $4, from which stores could she purchase her pineapple? Check all that apply.

A farmer grows 105 pounds of apples. He sells them to a grocer who divides them into 2 pound and 3 pound bags.

What is the value of the following function when x = 0? On a coordinate plane, a graph of a function intersects the x-axis at (negative 2, 0) and (1.25, 0). The function intersects the y-axis at (0, negative 2).

Sue wrote a double fact. It has a some less than 10 and greater than four. The Adams are each less than five. What fact my she have written

444919 to the nearest ten thousand

Ellen thinks that if a line has no slope, then it never touches the y-axis. Which line proves that her statement is incorrect? x = 0 y = 0 x = 1 y = 1