Question

Are the equations x+2 =92, x +4 =11
equivalent ?​

Answer 1

x + 5 = 12

Subtracting 5 from both the sides:

⇒ x + 5 − 5 = 12 − 5

⇒ x = 7

Verification:

Substituting x = 7 in the L.H.S.:

⇒ 7 + 5 = 12 = R.H.S.

L.H.S. = R.H.S.

Hence, verified.

Answer 2

Aim : to find whether the equations are equal.

Equation 1:

x + 2 = 92

x = 92 - 2

x = 90

Equation 2:

x + 4 = 11

x = 11 - 4

x = 7

Hence the equations are not equivalent.

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