Question

6x+4y=18 5x-4y= -7

ayúdenme pliz :D​

Answer 1

6x+4y = 18.......(1)
5x-4y = - 7......(2)

Sumamos (1)+(2):

11x = 11

x= 11/11

x= 1

Sustituimos x en (1):

6(1) + 4y = 18

6 + 4y = 18

4y = 18 - 6

4y = 12

y = 12/4

y = 3