Please solve the following simultaneous equations 4x + 7y = 336 y = 6x + 2

Step 1 - through previous experience realise this equation can be solved by the substitution methodStep 2 - rearrange for the part you want to sub in, in this case it is done for us as Y is the variable we will sub inStep 3 - where there is a y in the equation replace it with 6x +2 this gives us 4x + 7(6x +2) = 336Step 4 - expand the brackets 4x + 42x + 14 = 336Step 5 - collect like terms to get 46x = 322Step 6 - divide through by 46 to find the value of x, x = 7

ES
Answered by Eleanor S. Maths tutor

3234 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Factorise and simplify the following equation: (2x^2 + 5x + 3) / (x + 1)


Find the points of intersection of the line y+x=8 and a circle with centre at (3,-2) and radius 5.


A bag contains 12 bals of different colours: 5 red, 4 blue and 3 yellow. What is the probability of not selecting a red ball


Work out the number of green pens in the box. (rest of Q below)


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning