Question

7. Simplify the following expressions and find their values when x 2:
(i) x + 7 + 4(x - 5) (i) 3(x + 2) + 5x - 7
(iii) 6x + 5(x - 2) (iv) 4(2x - 1) + 3x + 11
8. Simplify the following expressions and find their values when a = -1)
(1) 20 – 26 - 4-5+a
(ii) 2(a2 + ab) + 3 - ab
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Answer 1

Answer:

7.(i)-39,(ii)15,(iii)12,(iv)29

8.(i)-10,(ii)(well I need the value of 'b' for that..