Question

qual o valo de x.3y-5 sendo que
3x-4y=-2
3x+4y=10

Answer 1

3x-4y=-2
3x+4y=10

6x=8
x=8/6

3(8/6)+4y=10
4+4y=10
4y=10-4
4y=6
y=6/4
y=1,5

x.3(1,5)-5
8/6.4,5-5
6-5
1
resposta eh 1