7. (5 + 4 – 2) х (-2) = ? А. 14 В. -22 с. -14 D.22
1 answer:
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Answer:
The given equation is
y = x
→
reciprocating both sides, we get
→ ............(1)
→ Here x and y are Directly proportional to each other.
which means ,
→ x = k y , where k is constant of proportionality.
Or , = k ............................(2)
Equating (1) and (2),
k =