2x + y = 19
-2y - 2x = -22

please show step by step​

the value of x = 3 and y = 3

Step-by-step explanation:

2x + y = 9 (1)

-2y -2x = -22 (2)

Subtract (1) from (2)

-2x -2y = -22

2x + y = 19

       -y = -3

        y = 3

Put the value of y in equation 1

2x + y = 9

2x + 3 = 9

2x = 9 - 3

2x = 6

x = 6/2

x = 3

Therefore, the value of x = 3 and y = 3

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the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

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