A paragraph proof<span> is only a two-column </span>proof<span> written in sentences. </span>
Answer:
A)
Step-by-step explanation:
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22 students per class
88/4 = 22
Multiply the first equation with (-1)
you should get this
-6r + 3t = -6
6r + 8t = -16
start to eliminate
11t = -22
divide by 11
t = -2
substitute
6r - 3(-2) = 6
6r + 6 = 6
6r = 6 - 6
6r = 0
r=0