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 ...

The two expressions are linked with an equals ... by performing the same operations on both sides. To solve an equation, more than one step may be needed to find the unknown variable.

Masaki Kashiwara, this year’s Abel Prize winner, co-founded a new field of mathematics called algebraic analysis ...

His work involves the use of algebra to investigate geometry and symmetry, and has focused on using those ideas to find solutions for differential equations ... no clue how to solve it.” ...