solve x/2 + 11 = 15

whenever we solve an equation we want to get the unknown (x) alone on one side of the equals sign, but remember whatever we do to one sign of the equation, we have to do to the other. So lets start by subtracting 11 from both sides:

x/2 + 11 = 15

x/2 = 15 - 11

this then works out to

x/2 = 4

from here we can multiply both sides of the equation by 2:

x = 4 x 2

therefore x = 8

Answered by Samir P. Maths tutor

5727 Views

See similar Maths GCSE tutors

Related Maths GCSE answers

All answers ▸

What is the probability that you pick a blue ball from a bag of 3 blue balls, 4 red balls and 2 black balls


Find dy/dx for the following equation: f(x) = x^7 + 7x


how do you know if two straight lines on a graph are parallel or perpendicular?


I need help understanding simultaneous equations with more than two variables, can you please help?


We're here to help

contact us iconContact usWhatsapp logoMessage us on Whatsapptelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo
Cookie Preferences