Ncert class 8 maths chapter 2 deals with Linear equation in one variable
Introduction: Variable : A symbol which can takes various numerical values is called variable.
Ex : x,y…
Term : A Constant alone or A variable alone or combination of constant and variable with multiplication ‘×’ , division ‘÷’ is called term.
Multiplication ‘×’ ,division ‘÷’ do not separate the terms.
Ex: x/2y, xy are single terms.
Expression : An expression is a single term or a combination of terms connected by the symbols ‘+’(plus) or ‘-‘ (minus).
Ex : x²+y is an expression having two terms.
x+y²+z is an expression having 3 terms.
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