Question 2(d)
Solve the following equations:
3-2(2-y)=7

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Solution

$3 - 2 (2 - y) = 7 \Rightarrow - 2 (2 - y) = 7 - 3 \Rightarrow - 2 (2 - y) = 4 \Rightarrow 2 - y = \frac{4}{- 2} \Rightarrow 2 - y = - 2 \Rightarrow - y = - 2 - 2 \Rightarrow - y = - 4 \Rightarrow y = 4$

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Solve:

$\frac{1}{22} + \frac{21}{22}$

2 x - 7 y = 7; 3 x + y = 22

Solve each of the following systems of equations by using the method of cross multiplication:

$7 x - 2 y = 3, 22 x - 3 y = 16.$

Solve the equations y = x + 3 and 3x + y = 17.

3 \times \frac{22}{7} \times 7 \times 7

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