19-09-2020
Mathematics

contestada

x + y = 8
3x - y = 12

Respuesta :

aliwreading aliwreading

19-09-2020

Answer:

x = 5 and y = 3

Step-by-step explanation

y crosses out so you are left with

4x = 20 (divide by 4)

x = 5

plug x into either equation

5 + y = 8 (subtract 5)

y = 3

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