Worked example 1 Solve the following equations and verify your solutions. (i) 9x − 5 = 5x − 13 (ii) − 3 (x + 7) = 7 (− 2x + 4) + 17
Solution (i)
✓ (ii)
It is good practice to verify your answer after solving an equation.
✓
Worked example 2 Solve the following equations and verify your solutions.
(i) 5
__ 9 x − 10 = 5
Solution (i)
(ii) 4x + 3
_____ 10 − 6x − 5
_____ 5 = 13
__ 2
Invisible Maths! ✓
When multiplying fractions, we need to multiply the numerators by each other and the denominators by each other. We can easily multiply whole numbers, as they both have a denominator of 1.