Solve 2x+1=11

When faced with a question like this, the aim is to work out the value of "x". What this question basically means is "what number can we multiply by 2 and add 1 onto it to get 11. There a few methods to tackle this question, one of which involves taking away the numbers from one side and adding them to the other whilst leaving the x on the other side, followed my dividing through by the coefficient of x, giving x = 5.Another method is to construct a number line and mark the number 11 on it, then from 0 we can draw one jump to 1, then we know the rest of the space between 1 and 11 represent the value of 2x. So 2x = 10 and from this we can work out that x = 5 (This method makes much more sense when drawn out).

MI
Answered by Molly I. Maths tutor

7568 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

Solve algebraically the simultaneous equations 3x + 2y = 15 and 2x + 4y = 10


Solve this set of linear equation to find x and y: 1. 8x + 2y =48 2. 7x +3y =47


How do I simplify 10/(3 root5)?


What is 3!/5! written in standard form?


We're here to help

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

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning