Question

Determine a solução do sistema


a)6x+y=5

-3x+2y=5

B)7x-3y=12

2x+3y=10

Me ajudem pfvrrrrr

Answer 1

a)

-12x -3x = -10 +5

-15x = -5

x = 5/15

x = 1/3

6/3 +y = 5

y = 5 -2

y = 3

b)

7x +2x = 12 + 10

9x = 22

x = 22/9

y = (10 -44/9)/3

y = (90 -44)/27

y = 46/27