The word equation is derived from word ‘equal’. Any expression having equal (=) sign is called equation. If any linear algebraic expression in one variable is equal to some integer or some other algebraic expression, then it is called algebraic equation.

Linear equations can be categorized as follows

1. When variable is only one side.

2. When variable is on both sides

When variable is only on one side: We always solve the equation for an unknown variable using the same operations on both sides so that equation doesn’t become uneven and both sides remain balanced.

When variable is on both sides:

When variables on both sides of equation, we try to bring the variables together either on left or on right side and then move forward with the same process of isolating variable

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