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Write 4x = 9y - 5 in the form ax + by + c = 0. What are the numbers a, b and c?

Try it on paper first. A hint, the key idea and the worked solution are here when you need them.

Write $4x = 9y - 5$ in the form $ax + by + c = 0$ . What are the numbers $a$ , $b$ and $c$ ?

Need a reminder? The key ideaShow

A linear equation in two variables, $ax + by + c = 0$ , has infinitely many solutions $(x, y)$ . To test a pair, put it in the equation and compare the two sides.

The worked solution

Have you tried it?

Work it out on paper first. It is fine to get stuck or make a mistake: that is how we learn. When you are ready, go through the solution one step at a time, and check each step against your own.

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