Question

Different mathematical operations are given in the two rows below. Find out the number
you get in each operation and make equations.



10 own​

Answer 1

1

st

row⇒

67 12 11

67−12 = 55 (rule (iv))

55÷11 = 5 (rule (v))

Since x is the resultant of first row, therefore, x=5.

2

nd

row⇒

20 5 14

20+5 = 25 (rule (ii))

25−14 = 11 (rule (iv))

Hence, the resultant of 2

nd

row is 11.

Answer 2

Answer:

2+3=x

$2x + 3 = 9 \\ 5x + 9 = 19 \\ (x - y)(x + y) = {?}^{2} \\ x + y = 4 + 3x \\ 8 + 8x = {?}^{2} + 8$

2x+9-7×67y=67+6y×7x

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