Students can go through AP Board 8th Class Maths Notes Chapter 2 Linear Equations in One Variable to understand and remember the concepts easily.
AP State Board Syllabus 8th Class Maths Notes Chapter 2 Linear Equations in One Variable
→ An algebraic equation is equality of algebraic expressions involving variables and constants.
→ If the degree of an equation is one then it is called a linear equation.
→ If a linear equation has only one variable then it is called a linear equation in one variable or simple equation. ‘
→ The value which when substituted for the variable in the given equation makes L.H.S. = R.H.S. is called a solution or root of the given equation.
→ Just as numbers, variables can also be transposed from one side of the equation to the other side.
Note: When we transpose terms
‘+’ quantity becomes ’-‘ quantity,
‘-‘ quantity becomes ‘+’ quantity.
‘×’ quantity becomes ‘÷’ quantity.
‘÷’ quantity becomes ‘×’ quantity.
(+) × (+) = +
(+) × (-) = –
(-) × (+) = –
(-) × (-) = +