Question

Important points

1. An equation is a statement of equality of two algebraic expressions involving
one or more unknown quantities.

2. Equations, in which the highest power of the variable is 1, are called linear
equations.

3. The value of the variable that satisfies the equation is called the solution of
the equation.

4. Rules for solving a linear equation:


(a) The same number can be added to both sides of the equation.

(b) The same number can be subtracted from both sides of the equation.

(c) Both sides of the equation can be multiplied or divided by the same non-
zero quantity.


5. Any term of an equation may be taken to the other side with sign changed.
This process is known as transposition.

6. If, then xyFpy. This is called cross multiplication.
y 9

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Answer 1

Answer:

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Answer 2

Answer:

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Step-by-step explanation:

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