SuperExamSuperExam
Search papers…
Menu
DashboardBrowse papersRevision notesBooksSavedRevision packsMy progressAchievementsAI TutorMessages

Unlock worked solutions

Step-by-step answers by examiners. From €5/mo.

Try Premium free →
← Maths notes
Edexcel IGCSE·Maths·IGCSE Higher Mathematics

Linear Equations & Inequalities

14 min read

Solving linear equations including those with brackets and fractions, forming equations, and solving and representing inequalities.

Solving linear equations

Do the same operation to both sides to isolate the variable. Clear brackets and fractions first. 2x+13=5⇒2x+1=15⇒2x=14⇒x=7\frac{2x+1}{3}=5 \Rightarrow 2x+1=15 \Rightarrow 2x=14 \Rightarrow x=732x+1​=5⇒2x+1=15⇒2x=14⇒x=7 If the variable is on both sides, collect it on one side first.

Viewing only

This content is free to read on superexams.com and cannot be printed or downloaded.

Read the full note — free

Create a free account to read this note in full. Every free account gets 2 complete revision notes — no card needed.

Sign up free →Log in

More Maths notes

Number & the Number System

Fractions, Decimals & Percentages

Ratio, Proportion & Rates of Change

Indices, Standard Form & Surds