Some equations have letters on each side of the equals sign, for example: \(4(k + 7) = 12k - 4\). Solve this equation by rearranging all the letters onto one side of the equation and all numbers onto ...

Solve this equation by rearranging all the variables onto one side of the equation and all numbers onto the other side. The easiest way to do this is usually by moving the unknown with the smallest ...

It’s the sort of easy maths problem that you can work out in a few minutes using pencil and paper, but physicists in China, Canada and Singapore have now solved pairs of linear equations like this one ...