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Mary Fischer
Mathematics
5 September, 22:40
If a-7=b (x+2) then x=?
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Tony Guzman
5 September, 22:55
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X = (a - 7) / b - 2
Step-by-step explanation:
When this kind of question arises, what we are expected to do is to make x the subject of formula.
Reason because we have up to three unknown in the equation including x.
So let's make x the subject of the formula.
a-7=b (x+2)
a - 7 = bx + 2b
a - 2b - 7 = bx
a-7 - 2b = bx
Dividing through by b
(a-7) / b - 2 = x
X = (a - 7) / b - 2
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