Question 6 (iii)

Simplify the expression and find the value ifx is equal to 2:
6x + 5(x - 2)

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Solution

6x + 5(x - 2) = 6x + 5x - 10 = 11x - 10
$= 11 \times 2 - 10$ [Putting x = 2]
= 22 – 10 = 12

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Question 6 (ii)

Simplify the expression and find the value if x is equal to 2:
3(x + 2) + 5x - 7

Question 6 (iv)

Simplify the expression and find the value ifx is equal to 2:
4(2x - 1) + 3x + 11

x = 2

6 x + 5 (x - 2)

Simplify the expressions and find the value if x is equal to 2

(i) x + 7 + 4 (x − 5) (ii) 3 (x + 2) + 5x − 7

(iii) 6x + 5 (x − 2) (iv) 4 (2x −1) + 3x + 11

x = 2

3 (x + 2) + 5 x - 7

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