A-level Mathematics/OCR/C1/Equations/Solutions

Manipulating Equations Collecting Like Terms 1. Here we only have terms, so we can add them together: 2. We have a similar situation to problem 1, but this time with terms. We can combine them by adding their coefficients: 3. Here we have three different terms in the mix (, and ) so we need to be a little more careful. We can only combine coefficients if they represent the same term. Separate the expression into terms of , and as follows: Now combine the coefficients of the like terms: 4. This is another case with three distinct terms (, and ). Combine the coefficients of like terms: 5. Multiplication Fractions Solving Equations Changing the Subject of an Equation Solve for x. Solve for z. Solve for y. Solve for x. Solve for b. Solving Quadratic Equations Find the Roots of: Simultaneous Equations Equations/Solutions