It is substitution. Because you are substituting 3=y into x+5=3
20 plus 24
Divided by 15
Which gets you to
44 over 15 or 2 wholes and 14 over 15
Answer:
15.7
Step-by-step explanation:
5 x 3.14(pi) = 15.7
6r - 3t = 6 /*8
6r + 8t = - 16 /*3
48r - 24t = 48
48r + 24t = - 48
---------------------- +
96r = 0
r = 0
t = ( -16 + 6r)/8 = - 16/8 = - 2
