Algebra - Week 4: Lesson 2: Substituting Formulae
Lesson Objective: Students will be substituting into formulas and solving for the amount of variables.
Examples:
Work out the value of P. If n = 6
P = 3n
P=3(6)
P= 18
Find the value of y when x = 9
y = 5x – 3
y = 5(9) - 3
* Remember to follow order of operations
y = 45 -3
y = 42