To solve an equation we use the inverse operations to undo the equation. STEP 5 - You’ve found the answer x = 2. Always remember to put the units back in. So 1 loaf of bread costs £2.

Each linear equation can be drawn as a line on a graph. The co-ordinate where the two lines intersect will give the solution of x and y. STEP 2 - The equations can be rearranged so that they both ...

Having lowered the bar for the sense in which we hope to solve a system of linear equations, one might wonder whether this quantum algorithm 3 offers a real advantage over classical computing at all.