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15-09-2021
Mathematics

contestada

2x-y=3 and y=9-x in substitution methood

Respuesta :

workandwin workandwin

15-09-2021

Answer:

By adding equation we get:

2x-y=3

x +y=9

______

3x=12

x=6

Step-by-step explanation:

cut the positive and negative (y)

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