Answer :
[tex]h-6+7h=42 \\\\ 8h-6=42 \\\\ 8h=42+6 \\\\ 8h=48 \\\\ \boxed{h=\frac{48}{8}=6}[/tex]
solve for h by isolating it on one side and ask else on the other . . .
h - 6 + 7h = 42
h + 7h - 6 = 42
h(1 + 7) - 6 + 6 = 42 + 6
8h = 48
8h/8 = 48/8
h = 6
h - 6 + 7h = 42
h + 7h - 6 = 42
h(1 + 7) - 6 + 6 = 42 + 6
8h = 48
8h/8 = 48/8
h = 6
