Seudónimo Seudónimo

22-12-2020
Mathematics

contestada

Help please
Solve the system.
-2x + 1/2y
= 3/2
x - зу
= 2
Find the value of 'x'.

Respuesta :

zyuvely zyuvely

23-12-2020

Answer:

-2x + 1/2y = 3/2

(x - 3y = 2) ×2

-2x + 1/2y = 3/2

(+) 2x -6y = 4

0 - 11/2y = 11/2

y = -1

substitute y into x - 3y = 2

x = 2 + 3(-1)

x = -1

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