Equation 1: 4x − 2y = −12 Equation 2: −2x + y = 6

Recall that the first step in solving a system of equations by the method of elimination is to make the coefficients for x or y have the same absolute value but opposite signs.

Multiply Equation 2 with a number to make the absolute value of its x-coefficient the same as in Equation 1. Remember to multiply each term.
Equation 2: ( ? )(−2x + y = 6)

Use the Distributive Property.
Revised Equation 2:
−4x + __?___ y=___?

*There are 3 answers to this problem (everywhere there is a question mark)* 20 points for right answer, will mark brainiest if right*

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.

5x + 5

step-by-step explanation:

you should always add the diagrams and graphs we cannot see. this particular question is kind of borderline because we can make a graph for you.

(f + g)x = -x^2 +3x + 5 + x^2 + 2x

(f + g)x = 5x + 5

the graph of z = 5x + 5 is shown below. always use desmos when in doubt.