POR FAVOR ME AJUDE Dê o valor da expressão algébrica: 2x + y - 6 sendo x = 3 e y = -8

preciso entregar hoje!!

2x3+-8-6= -8

I can't explain cause I don't know a lot of Espanol

The answer is -8.

Explanation:

You need to subsitute the x and the y with the -8 and 3. Then just solve from there.

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

answer:

f(5/2) = 10/3

i hope this you!