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Question

Given b=2aa−2 and c=3b−44b+3, express c in terms of a.

A
c=82a11a6
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B
c=2a+86a11
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C
c=8a+211a6
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D
c=2a+811a6
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Solution

The correct option is D c=2a+811a6
Given c=3b44b+3 And b=2aa2

Now, value of b=2aa2

c=3(2aa2)44(2aa2)+3

c=6a4(a2)8a+3(a2)

c=6a4a+88a+3a6 = 2a+811a6

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