Solving Equations after Substitution (HSC SSCE Mathematics Standard): Flashcards

Mathematical relationship connecting two or more variables

Symbol (usually letter) representing a quantity that can vary

$a^2 = b^2 + c^2$

$A = \pi r^2$

Replacing variable letters with actual numbers

Variable standing alone on one side of equals sign

Write the formula

Replace variables with known values

Solve the equation if necessary

Correct units and specified accuracy