MYTUTOR SUBJECT ANSWERS

240 views

Solve the simultaneous equations 3x + 4y = 17 and 4x + y = 14

Eq1: 3x + 4y = 17

Eq2: 4x + y = 14

Eq2 x 4: 16x + 4y = 56

Subtract Eq1 from this to isolate x: 16x + 4y - 3x - 4y = 56 - 17

Simplify: 13x = 39

Solve for x: x = 3

Substitute x into Eq1: 3(3) + 4y = 17

                                 9 + 4y = 17

                                 4y = 8

                                 y = 2

Check in Eq2: 4(3) + (2) = 14

                      12 + 2  = 14

David H. GCSE Biology tutor, A Level Biology tutor, GCSE Maths tutor,...

9 months ago

Answered by David, a GCSE Maths tutor with MyTutor

Still stuck? Get one-to-one help from a personally interviewed subject specialist

327 SUBJECT SPECIALISTS

£20 /hr

Joe B.

Degree: Mathematics G100 (Bachelors) - Bath University

Subjects offered: Maths, Further Mathematics + 4 more

Maths
Further Mathematics
Economics
.STEP.
.MAT.
-Personal Statements-

“About Me Hi, I'm Joe, a first year mathematics student from Luton studying at Bath University. I am an accomplished mathematician and economist, having achieved A* grades in A Level Maths, Further Maths and Economics in June 2016. As ...”

£18 /hr

Andrew B.

Degree: Economics L100 (Bachelors) - Exeter University

Subjects offered: Maths, Economics

Maths
Economics

“About Me: I am an economics student at Exeter University, I have a real passion for economics and how applicable it is to the world around us, and I hope my enthusiasm for it comes across in my tutorials and helps to inspire you! I'm...”

£18 /hr

Rhys M.

Degree: Economics (Bachelors) - Durham University

Subjects offered: Maths, History+ 2 more

Maths
History
Geography
Economics

“About Me I am currently studying Economics at Durham University. Economics is a very broad subject, so I am very passionate about many other subjects and do a lot of reading around my subject. I was delighted to be awarded the top spo...”

About the author

David H.

Currently unavailable: for regular students

Degree: Medicine (Bachelors) - Exeter University

Subjects offered: Maths, Biology

Maths
Biology

“Me, myself and I I am a current medical student at Exeter University. I have loved science and maths from an early age, and have always looked for ways to increase my understanding of them – Horrible Science magazines were my favourit...”

You may also like...

Posts by David

Solve the simultaneous equations 3x + 4y = 17 and 4x + y = 14

What is meant by the semi-conservative replication of DNA?

What is the angle between the position vectors a and b, where a = (6i - j + 3k) and b = (-4i + 2j + 10k)?

Why is the heart known as a double pump?

Other GCSE Maths questions

Expand and simplify the following; (2 + 3^0.5)^2 - (2 - 3^0.5)^2

How do you work out the old price of an item having been given the new price after a specified percentage change?

Factorize x³-x

Expand (2x-3)(4x+4) using the FOIL method.

View GCSE Maths tutors

Cookies:

We use cookies to improve our service. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok