Asystem of equations is shown below.

which operations on the system of equations will isolate the y quantity?

a) multiply the second equation by 2 and add the result to the first equation

b) multiply the first equation by -7 and the second equation by -5 and add the resulting equations

c) multiply the second equation by -2 and add the result to the first equation

d) multiply the first equation by 7 and the second equation by -5 and add the resulting equations

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

On new year's day, the average temperature of a city is 5.7 degrees celsius. but for new year's day 2012, the temperature was 9.8 degrees below the average. i) if a represents the average temperature on new year's day and 7 represents the temperature on new year's day 2012, what formula accurately relates the two values together? ii) what was the temperature on new year's day 2012? dt a 0.8 ii) - 4 1 degrees celsius da-t-98 ii) 59 degrees celsius 1) 7 = -9,8 11) 59 degrees celsius ii) l degrees celsius

What is the result of adding the system of equations? 2x+y=4 3x-y=6