Get premium membership and access revision papers with marking schemes, video lessons and live classes.
OR

# Form 1 Mathematics online lessons on algebraic expressions

Substitution of values in the algebraic expressions

(6m 28s)
533 Views     SHARE

Substitution of values in the algebraic expressions:
This is the process of giving variables specific values in an expression.

Example 1.

Evaluate the expression (x^2 + y^2)/(y + 2)
if x =2 and y = 1

Example 2.

Three years ago, Juma was three times as old. As Ali in two years time, the sum of their ages will be 62. Determine their ages

|