4(3x-7) = 8

First multiply out the bracketsMultiply each component within the bracket by 4 (4 x 3x) + (4 x -7) = 812x - 28 = 8 Now you want to ensure you have the x's on their ownYou can eliminate the -28 by adding 28 to BOTH SIDES This leaves you with 12x = 36Now to get x alone you want to divide both sides by 12 This leaves you with x = 3 In order to check your answer you can substitute x = 3 back into the equation and see if it adds up correctly

JH
Answered by Jack H. Maths tutor

2287 Views

See similar Maths KS3 tutors

Related Maths KS3 answers

All answers ▸

Expand and simplify (3x + 5)(2x - 4)


calculate the volume and surface area of a beach ball with a 30cm diameter.


Solve 4x + 10 = 18


Solve the following simultaneous equations: 2y + 3x = 19 and 7x + y = 26.


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

© MyTutorWeb Ltd 2013–2025

Terms & Conditions|Privacy Policy
Cookie Preferences