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# Algebra

#### Question 2:

Complete the entries in the third column of the table.

 S. No. Equation Value of variable Equation satisfied Yes/No (a) 10y = 80 y = 10 - (b) 10y = 80 y = 8 - (c) 10y = 80 y = 5 - (d) 4l = 20 l = 20 - (e) 4l = 20 l = 80 - (f) 4l = 20 l = 5 - (g) b + 5 = 9 b =5 - (h) b + 5 = 9 b = 9 - (i) b + 5 = 9 b = 4 - (j) h − 8 = 5 h = 13 - (k) h − 8 = 5 h = 8 - (l) h − 8 = 5 h = 0 - (m) p + 3 = 1 p = 3 - (n) p + 3 = 1 p = 1 - (o) p + 3 = 1 p = 0 - (p) p + 3 = 1 P = − 1 - (q) p + 3 = 1 P = − 2 -

(a) 10y = 80

y = 10 is not a solution to the given equation because for y = 10,

10y = 10 × 10 = 100, and not 80

(b) 10y = 80

y = 8 is a solution to the given equation because for y = 8,

10y = 10 × 8 = 80 and hence, the equation is satisfied.

(c) 10y = 80

y = 5 is not a solution to the given equation because for y = 5,

10y = 10 × 5 = 50, and not 80

(d) 4l = 20

l = 20 is not a solution to the given equation because for l = 20,

4l = 4 × 20 = 80, and not 20

(e) 4l = 20

l = 80 is not a solution to the given equation because for l = 80,

4l = 4 × 80 = 320, and not 20

(f) 4l = 20

l = 5 is a solution to the given equation becâ€¦

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