work out the value of 4a + 2b when a = 4 and b = 3

To solve this question you want to do it step by step.
Firstly replace the 'a' with '4' and calculate the first part of the sum. 4 multiplied by 4, which is 16.
Next replace 'b' with '3' and calculate the second part. 2 multiplied by 3, which is 6.
once you have calculated both values simply add them together. 16 + 6 = 22

JF
Answered by Joseph F. Maths tutor

30076 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Consider the right angled triangle with vertices labelled a, b, c. Angle A = 60°, Angle B = 90°, length ab=4cm, length ac=xcm. If cos60° = 0.5, work out the value of x.


Find the roots of the following function: f(x)= 3*(x-1)^2 - 6.


Can you make 'p' the subject of the following equation? 4(p-2q)= 3p+2


Express 56 as the product of its prime factors


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