Solve the equation \(\frac{3s + 9}{4} = 7\). This means \(3s + 9\) has all been divided by 4. To solve the equation, inverse the operations. The opposite of dividing by 4 is multiplying by 4. Any ...

Find your added subjects in My Bitesize. Try this quiz based on GCSE Maths past papers. Choose the topic you would like to revise and answer the questions. GCSE Maths: exam-style questions Free ...

iPhone/Windows Phone: You have a ton of options for calculators on your phone, but Photomath does things differently. Just point your phone's camera at an equation and PhotoMath automatically comes up ...

Functional differential equations with forward and backward delays arise naturally, for instance, in the study of travelling waves in lattice equations and as semi-discretizations of partial ...

We derive midpoint criteria for solving Pell's equation x² - Dy² = ±1, using the nearest square continued fraction expansion of $\sqrt D $ . The period of the expansion is on average 70% that of the ...