solve 2^(3x+1)=16

The first step is to make sure that everything has the same base, so you can equate the powers. For example if you have an equation 22 = 2x you know that x must equal 2. So with this question you can rewrite 16 as 2^4, and then equate the powers. So you get the new equation: 3x+1 = 4, then just rearrange to get x. So 3x = 4-1 so 3x=3 then divide both sides by 3 to get x=1.So the general way to solve questions like this is to: 1. change the bases so they are all the same 2. equate the powers

Answered by Jessica P. Maths tutor

5160 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

ABCD is a regular paralleogram, A=(2,1) B=(7,2) and C=(4,6), work out the gradient of the line CD and then work out the area of ABCD.


What is the quadratic formula and how do I use it?


Expand and simplify (x-7)^2


What is the point of intersection of two lines, and how would I find it?


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