Edexcel Gcse Mathematics (Linear) - Algebra: Substitution Page 3
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8y = 5x – 3
3.
Find the value of
y
when
x = 9
y = ..............................
(2)
(Total 2 marks)
4. P = 4k – 10
k = 7
(a) Work out the value of k.
.....................................
(2)
y = 4n – 3d
n = 2
d = 5
(b) Work out the value of y.
.....................................
(2)
(Total 4 marks)
5.
v = u + 10t
Work out the value of v when
u = 10 and t = 7
v = ………………………
(Total 2 marks)
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