You combine like terms like 8y+13y which gives you 21y and don't forget the -5x so your simplified equation would end up being A. 21 - 5x
x would equal 14 hope this helps
Answer:
B = C - D / A
Step-by-step explanation:
C = AB + D
subtract D
C - D = AB
Divide by A
B = C - D / A
C and D are both divided by A
