If y = 15 + 5(x + 2), and x = 6, what is y?

Because we're told that x = 6, we can just rewrite the original equation but replace the x with a 6. So:
y = 15 + 5(6 + 2)
6 + 2 = 8, so we can rewrite this again as:
y = 15 + 5(8)
5(8) is just another way of writing 5 times 8, which is 40, so
y = 15 + 40
15 + 40 = 55, so y = 55

Answered by Alfie H. Maths tutor

1875 Views

See similar Maths 11 Plus tutors

Related Maths 11 Plus answers

All answers ▸

Chloe has 3 pieces of wool. One piece is 160mm long, another is 26cm long and the last piece is 0.45m long. What is the total length of wool, in centimetres, that Chloe has?


What are the missing numbers in this sequence? 2, 4, 8, ..., 32, ..., 128


How do I find the prime factors of a number?


How do I add decimal numbers?


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 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences