Definition: Algebraic Equation is a condition where two expressions have equal values.
Examples:
4x + 2 = 8
15 = 5x
x/2 = 8
3x  2 = 4
Points to note:
1. Out of two expressions, one expression must contain a variable.
2. Even if we interchange the expression, the value remains unchanged.
Write the following statements in the form of equation:
Question 1  Five times of "x" is 15
Solution  This proceeds as :
Five times of "x" = 5x
The resultant equation we get;
5x = 15
Question 2  Sum of 4 times "x" and 2 is 10
Solution  This proceeds as :
Four times of "x" = 4x.
Sum of 4x and 2 = 4x + 2
The resultant equation we get;
4x + 2 = 10
Question 3  Subtract 2 from 4 times of "x" and we get 10
Solution  This proceeds as :
Four times of "x" = 4x.
Subtract 2 from 4x = 4x  2
The resultant equation we get;
4x  2 = 10
Question 4  One third of "x" is 15
Solution  This proceeds as :
One third of "x" = 1/3x
The resultant equation we get;
1/3x = 15
