Solving equations with unknown in both sides

Given, 8x - 8 = 2x + 10

Solution: To solve this kind of problem, the first step is to always collect the like terms together i.e. Take the terms with x to one side of the equal sign and the numbers to the other side.

Recall: When terms cross the equal sign, their sign (+ or -) changes.

8x - 8 = 2x + 10

8x - 2x = 10 + 8

6x = 18

Now divide both sides by 6

6x/6 = 18/6

x = 3.

So always remember, collect like terms, simplify and then solve for the unknown.

Related Further Mathematics GCSE answers

All answers ▸

In the expansion of (x-7)(3x**2+kx-3) the coefficient of x**2 is 0. i) Find the value of k ii) Find the coefficient of x. iii) write the fully expanded equation in terms of x


Find any stationary points in the function f(x) = 3x^2 + 2x


Find the solution of 3^{4x} = 9^{(x-1)/2}.


f(x) = 3x^3 – x^2 – 20x – 12 (a) Use the factor theorem to show that (3x + 2) is a factor of f(x). [2 marks] (b) Factorise f(x) fully. [3 marks]


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 2013–2024

Terms & Conditions|Privacy Policy