The goal is to solve for y. Start by subtracting 2x from both sides. This gives you 8y=-2x+16. Now just divide both sides by 8, which gives you y=-2/8x+16/8. Finally, simplify this to y=-1/4x+2.
She practiced 630 hours in all because you multiply 18x35
Minus 9 from both sides
7x = 49
X = 7
I hope this helps you
(x-5)(x+1)
