2 Step Equations

A two-step equation has two operations to undo, and they are undone in the reverse of the order they were done. This NSW Year 8 maths subtopic (NESA outcome MA4‑EQU‑C‑01) covers equations such as \(5x + 12 = 42\) and \(\frac{x + 2}{3} = 4\), where the fraction line groups the whole top line.

You will tell \(\frac{x}{5} + 6\) apart from \(\frac{x + 6}{5}\), solve equations with negative numbers in front of the pronumeral and with decimal answers, and solve simple equations with the pronumeral on both sides, such as \(2x - 7 = x + 7\). You will also test whether a given value is the solution, and write an equation for a travel card that drops by the same fare each school day. It is part of Year 8 Equations.