Answer:
Step-by-step explanation:
3x+y
first start by putting each into the equation
3 ( x=-4)+(y+2)
x(-4)+2
use order of operations (PEMDAS)
multiplication is first, so you do x*-4
you get -4x
then add 2 to that
since x in an unown answer, you cannot add 2 +4
so the answer si -4x+2
