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Formulae

Linear Inequalities

Rule - 1:Equal numbers may be added to (or subtracted from) both sides of an equation.

Rule - 2:Both sides of an equation may be multiplied (or divided) by the same non-zero number.

Rule - 1:Equal numbers may be added to (or subtracted from) both sides of an inequality without affecting the sign of inequality.

Rule - 2:Both sides of an inequality can be multiplied (or divided) by the same positive number. But when both sides are multiplied or divided by a negative number, then the sign of inequality is reversed.

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