### ADJ

- complicated, simple
- This can be shown by a simple equation

- algebraic, mathematical

### VERB + EQUATION

- solve, work out
- I could not find a way of solving the equation

- satisfy
- the range of values of x which would satisfy this equation

### PREP

- ~ for
- the equation for a straight line

### PHRASES

- a side of the equation
- the numbers on the right-hand side of the equation

### VERB + EQUATION

- be a part of, come into, enter (into)
- The availability of public transport is also part of the equation. Money also comes into the equation