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

Answered by Jack H. Maths tutor

1782 Views

See similar Maths KS3 tutors

Related Maths KS3 answers

All answers ▸

Round 4 and 3/8 to the nearest whole number.


A restaurant can be hired out for children's parties, and the cost is shown by the formula "Cost = (£13.50 x number of children) + £23". What is the cost for 8 children?


Line L1 is y = 4x + 5, line L2 is 4y - 16x -2 = 0. Show that the lines are parallel to each other


Do particles expand when heated?


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