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Question
Make m the subject of the formula x = `"my"/(14 - "mt")`. Find m, when x = 6, y = 10 and t = 3.
Solution
x = `"my"/(14 - "mt")`
⇒ (14 - mt) x = my
⇒ 14x - mtx = my
⇒ -mtx - my = -14x
⇒ m(tx + y) = 14x
⇒ m = `(14x)/("tx" + y)`
Substituting x = 6, y = 10 and t = 3
m = `(14 xx 6)/(3 xx 6 +10)`
= `(14 xx 6)/(28)`
= 3.
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