Simultaneous equations are two linear equations that can be solved using bar models. By remembering that the same letter will always have the same value we can work out the missing values. To solve ...

Simultaneous equations Simultaneous examples with no common coefficients Forming and solving simultaneous equations Linear and quadratic equations - Higher Solving simultaneous equations graphically ...

Grade school math students are likely familiar with teachers admonishing them not to just guess the answer to a problem. But a new proof establishes that, in fact, the right kind of guessing is ...