Tuesday, 11 December 2007

Q6 - substitution & changing subject

6 Here is an expression: t = 4w – 3c
a) Find the value of t if w = 5 and c = -7
b) Make w the subject of the expression. (it should look like w = …)
(4 marks)
ANS
a) 41
b) w = (t - 3c) divided by 4

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