4. What should be the value of a if
(a) the value of 2a + b + 1 equals to 25, when b = 0?
18 whon h
1to
12
/S
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Answer:
a-12
as we transpose 1 to lhs
we get 2a +0 _ 25-1
therefore a equal to 24 divided by 2
a -2
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