solve the simultaneous equations 8x + 2y = 48 , 14x + 6y = 94

Step 1) Rearrange the first equation to make y the subject: 8x + 2y = 48 , 2y = 48 - 8x , y = 24 - 4x. step 2) Sub y = 23 - 4x into the second equation: 14x + 6(24 -4x) = 94 , 14x + 144 - 24x = 94 Step 3) solve for x: 14x + 144 - 94 = 24x , 50 = 24x - 14x , 50 = 10x , x = 5. Step 4) sub x=5 into either equation: 8(5) + 2y = 48 , 40 + 2y = 48 , 2y = 8y = 4 Step 5) check answers by subbing in both x and y values into the other equation: 14(5) + 6(4). = 94 , 70 + 24 = 94

Answered by Harrison S. Maths tutor

2013 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

where do the graphs y=3x^2-2x-5 and y=4x-2 intersect


Solve simultaneously x + y = 1, 2x + 3y =9


1. factorise x^2 - 9 Level 6 KS3, 2. Rearrange a (q-c) = d to make q the subject


How do I expand double brackets? E.g. (4x+7)(3x+5)


We're here to help

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

© MyTutorWeb Ltd 2013–2024

Terms & Conditions|Privacy Policy