Chap 2 LINEAR EQUATIONS IN ONE VARIABLE

Chap 2

LINEAR EQUATIONS IN ONE VARIABLE

SOME IMPORTANT FACTS

1.      An equation is a statement of equality which contains an unknown quantity / variable.

2.      Any value of the variable which makes the equation a true statement is called the solution or root of the equation.

3.      Without changing the equality, we may :

i)                    Add/ subtract same number to/ from both sides of the equation.

ii)                  Multiply/ divide both sides of the equation by a same non-zero number.

4.      By transposing a term means taking it to the other side of the equation with change of its sign.