z = 3x + 5y, if x = 7 and z = 41, what is 2y?

z = 3x + 5y 41 = 3(7) +5y 41= 21 + 5y 20 = 5y 4 = y y = 4 2y = 8

Answered by Hannah A. Maths tutor

3232 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

work out 20% of 14000


Expand the brackets? (x+4)(2x-3)


Solve the simultaneous equations 3x - y = 5, x + 2y = -3


Find the solutions to the quadratic equation x^2-9x+20=0


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
Cookie Preferences