Question 4.1.8: Solve 8y - 6y + 4y = 24....

Start by combining terms on the left:

 8y – 6y + 4y = 24

(8 – 6 + 4)y = 24    Combine like terms.

                                 6y = 24

                                $\frac{6y}{\mathbf{6}} = \frac{24}{\mathbf{6}}$    Divide both sides by 6.

                                   y = 4