Solve: 5 - 2(x - 1) = 4(3 - x) - 2x.
$[2 M a r k s]$

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Solution

5 - 2(x - 1) = 4(3 - x) - 2x
⇒ 5 - 2x + 2 = 12 - 4x - 2x

⇒ 7 - 2x = 12 - 6x
$[1 M a r k]$

⇒ -2x + 6x = 12 - 7
⇒ 4x = 5
⇒ 4x/4 = 5/4
⇒ x = 5/4

$[1 M a r k]$

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Solve: 5 - 2 (x - 1) = 4 (3 - x) - 2 x .

(i)

2 x + 5 = 17

[2 M a r k s]

\frac{1}{2 x + 5} = \frac{4}{3}

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