Answer:
3+3=6 , 4+4=8
Step-by-step explanation: Brainliest pls
The answer :
4/5
Step-by-step explanation:
4x-5y=0
subtract 4x on both the sides
4x-4x-5y = 0-4x
-5y = -4x
divide by -5 on both the sides
-5y/-5 = -4x/-5
y =( 4/5 )x
15+6=21
15-(-6) = 21