Question

contract 3 equation starting with x=2​

Answer 1

Ex 4.3, 4 (a) Construct 3 equations starting with x = 2x = 2

Adding 2 on both the sides x + 2 = 2 + 2 x + 2 = 4 x = 2

Subtracting 2 from both the sides x − 2 = 2 − 2 x − 2 = 0 x = 2

Multiplying 2 on both the sides 2 × x = 2 × 2 2x = 4 Ex 4.3, 4

(b) Construct 3 equations starting with x = – 2x = -2

Adding 2 on both the sides x + 2 = −2 + 2 x + 2 = 0 x = −2

Subtracting 2 from both the sides x − 2 = −2 − 2 x − 2 = −4 x = −2

Multiplying 2 on both the sides 2 × x = 2 × (−2) 2x = −4