j)
[tex]5s - 9 = - 6 \\ 5s = 3 | \\ 5 \\ s = \frac{3}{5} [/tex]
[tex]5 \times \frac{3}{5} - 9 = 6 \\ 3 - 9 = - 6 \\ L = P[/tex]
k)
[tex]7 - 2x = 15 \\ - 2x = 8 | \div ( - 2) \\ x = - 4[/tex]
[tex]7 - 2( - 4) = 15 \\ 7 + 8 = 15 \\ L=P[/tex]
l)
[tex]6k + 3 = 33 \\ 6k = 30 | \div 6 \\ k = 5[/tex]
[tex]6 \times 5 + 3 = 33 \\ 30 + 3 = 33\\L=P[/tex]