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Mohan checked $x = 4$ in $2 x + 3 = 3 x - 1$ . He wrote LHS = 11 and RHS = 12, so 'not a solution'. What is the truth?

Class 7Checking Solutions by TrialSimple Equations

A $x = 4$ IS a solution; RHS is 11
BNeither side can be found
CMohan is right
D $x = 4$ is not a solution; LHS is 12

Step-by-Step Solution

LHS =

2 \times 4 + 3 = 11

. RHS =

3 \times 4 - 1 = 12 - 1 = 11

. Both are 11, so

x = 4

is a solution. Mohan slipped on the RHS.

Answer: A)

x = 4

IS a solution; RHS is 11

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