The following resources will help you practise solving equations.
Try this Linear Equation Generator
For a tutorial on simple equations, these notes from Plymouth University are clear; see also Section 3 of the Helm Project on equations. Both of these resources include examples, exercises and answers.
Or try AJ Hobson’s Just the Maths (individual pdfs hosted by UEA) (or a complete pdf from the Math Centre: AJ Hobson’s ‘Just the Maths’) where you will find clear notes, examples and exercises on many Mathematics topics including Algebra.
subtangent.com – Linear Equation Calculator
Choose the type of equation you require then the sequence of operations required to solve the equation.
Select Do it after each operation, for example -32 Do it were the keys selected to start the above problem.
The slideshow below shows how to use the calculator to solve equations where the unknown is on both sides.
The next sites work in a similar way to the subtangent resource.
There are 4 levels to choose from: the level 1 equations are of the type ax = b,
level 2, x±c = d, level 3, ex±f = g and level 4, hx±i = hx±j = k.
Choose the series of operations you require to solve the equation selecting apply at each stage to see the result of your chosen operation.
Choose numbers to add and subtract integers and letters to add and subtract variables.
Remember you can use WolframAlpha to check your solution to any equation, see for example this link which checks the equation 2x+7=11. (Checking just the answers is free).
To learn more about using WolframAlpha to check your work see the slideshows here.