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Question 1:

State which of the following are equations (with a variable). Give reason for your answer. Identify the variable from the equations with a variable.

(a) 17 = x + 7 (b) (t − 7) > 5

(c) (d) (7 × 3) − 19 = 8

(e) 5 × 4 − 8 = 2x (f) x − 2 = 0

(g) 2m < 30 (h) 2n + 1 = 11

(i) 7 = (11 × 5) − (12 × 4) (j) 7 = (11 × 2) + p

(k) 20 = 5y (l)

(m) z + 12 > 24 (n) 20 − (10 − 5) = 3 × 5

(o) 7 − x = 5

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