To solve this system using the addition method, you would need to multiply the first equation by what number in order for the y's to add out?

3x - y = 3

-2x + 2y = 6

Micheal bought a stereo on sale for 20% off the regular price. The regular price of the stereo was $180. If Micheal gave the cashier two 100 dollar bills, how much change will he get? A.$20 B.$44 C.$56 D.$88

Bert and Harriet collect quarters and pennies. When they wrapped coins to take to the bank, they had $42.50. If they wrapped a total of 410 coins, how many were pennies?

How many pairs of whole numbers have the sum of 10

What is the monthly payment for a loan if the amount to finance is $12,385, the APR is 6.9 percent for 5 years and the monthly payment per $100 is $2.44?

Simplify using only positive exponents. (2p^2q^-3r) - 3 / (3p^-2q^3r^2) A. 9^3/72p^2r^5 B. p^q^3/72r^5 C. q^3/72p^2r^6 D. q63r^5/72p^2

How do you write 60,000 in exponential notation

Simplify: - 2 (x - 5) + 6x

10 * 3 tens in unit form and standard form

Determine the total number of roots of each polynomial function. g (x) = (x - 5) 2 + 2x3

Christian book for research for $2 what is the unit price per racer