Answers>Maths>GCSE>Article

solve the simultaneous equation: 5x+y =21 and x-3y=9

5x+y=215x-15y=45
16y = -24 y = -1.5
5x -1.5 =215x=22.5x=4.5

CM
Answered by Caitlin M. • Maths tutor

2450 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve 2x^2 - 3x - 1 = 0, using the quadratic formula. Give your answer to two decimal places.

Answered by Jason W.

Find the coordinates of the two points where the lines y=x²+4x+6 and y=x+4 meet.

Answered by Gaby H.

1: x = 2, 2: y = x + 5 -> Solve this pair of simultaneous equations.

Answered by Eddie B.

What does Pythagoras's theorem state?

Answered by Rohan V.

We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

Company Information

CareersBlogSubject answersBecome a tutorSchoolsSafeguarding policyFAQsUsing the Online Lesson SpaceTestimonials & pressSitemap

Popular Requests

Maths tutorChemistry tutorPhysics tutorBiology tutorEnglish tutorGCSE tutorsA level tutorsIB tutorsPhysics & Maths tutorsChemistry & Maths tutorsGCSE Maths tutors

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
CEOP logo
CLICK CEOP

Internet Safety

Sagepay logo

Payment Security

Cyber Essentials logo

Cyber

Essentials

Cookie Preferences