InterviewSolution
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InterviewSolution
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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) 4/2 = 2(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) 3p/2 < 5 (n) 20 – (10 – 5) = 3 × 5(o) 7 – x = 5 |
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Answer» (a) 17 = x + 7 An equation with variable x (b) (t – 7) > 5 An inequality (c) 4/2 = 2 No, it is a numerical equation (d) (7 × 3) – 19 = 8 No, it is a numerical equation (e) 5 × 4 – 8 = 2x An equation with variable x (f) x – 2 = 0 An equation with variable x (g) 2m < 30 An inequality (h) 2n + 1 = 11 An equation with variable n (i) 7 = (11 × 5) – (12 × 4) No, it is a numerical equation (j) 7 = (11 × 2 ) + p An equation with variable p (k) 20 = 5y An equation with variable y (l) 3p/2 < 5 (An inequality m) z + 12 > 24 An inequality (n) 20 – (10 – 5) = 3 × 5 No, it is a numerical equation (o) 7 – x = 5 An equation with variable x. |
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