Question Number 78319 by clarissagirl last updated on 16/Jan/20
$$\mathrm{57}+\mathrm{6}{h}=\mathrm{16}{h}−\mathrm{33} \\ $$
Commented by jagoll last updated on 16/Jan/20
$$\mathrm{10}{h}=\mathrm{90}\:\Rightarrow\:{h}=\mathrm{9} \\ $$
57-6h-16h-33-