Question

Simplify these expressions and find their values if x = 3
( i)3x - 5- X + 9
(ii) 2 - 8x + 4x + 4​

Answer 1

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Answer 2

3(3) - 5 - 3 +9

9 - 5 -3 +9

4 - 3 + 9

1+9 =»10

2 - 8(3) + 4(3) + 4

2 - 24 + 12 + 4

-22 + 16 =» -6