Question

2z + x =15 ,2z + 3x = 9

Answer 1

Step-by-step explanation:

2z + x = 15 ---------(1)

2z + 3x = 9 ---------(2)

-2x = 6

2x = -6

x = -3

equation (1) Se

2z - 3 = 15

2z = 18

z = 9

Answer 2

Answer:

x=-3 z=9

Step-by-step explanation:

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