Answer:

Step-by-step explanation:
1. Combine like terms
2y-7y = -5y
-5y=5
2. Divide by -5 and the answer is 
The standard form: ax + by = c
and your equation is: -2x + 3y = - 5 (Yes this is written in standard form)
Answer:
2.24 g
Step-by-step explanation:
.56 x 4