drew has 50 red, green, and blue marbles. he has 6 more red marbles than blue marbles and 4 fewer green marbles than blue marbles. write and solve an equation to determine how many blue marbles Drew has.

step-by-step explanation:

step 1: solve one of the equations for one of the variables. let's solve the first equation for y:

step 2: substitute that equation into the other equation, and solve for x.

step 3: substitute x = 4 x = 4 x=4 into one of the original equations, and solve for y.

1) 2/5

2) zero=0/1

3) zero=0/2

4) -4/5

5) undefined=3/0

no

step-by-step explanation: