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Linear Equation in One Variable

The temperatu...

Question

The temperature of certain place fell by $2^{0}$ C ( a charge of - $2^{0}$ C ) each day for a week. What is the change of temperature over the whole week?

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Solution

Given for each day there is a temperature fall by $2^{\circ} C$

In a whole week (7 days), temperature fall $= 7 \times 2^{\circ} C = 14^{\circ} C$

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