<h3>I'll teach you how to solve (a), (b) and, (c)</h3>
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(A) 12 -2p when p=2
12-2p
Rewrite 12 as 2*6:
-2p+2*6
Factor out common term -2:
-2(p-6)
Your Answer For (A) Is -2(p-6)
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(B) 9+2r-6 when r=4
9+2r-6
Group like terms:
2r+9-6
Add/subtract the numbers:
2r+9-6
9-6=3
2r+3
Your Answer For (B) Is 2r+3
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(C) a+6b/2 when a=3 and b=3
a+6b/2
Apply the fraction rule:
a+6b/2 = a/2 + 6b/2
a/2 + 6b/2
Divide the numbers:
6/2 = 3
a/2+3b
Your Answer For (C) Is a/2+3b
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