Remember you can do anything to an eqution as long as you do it to both sides
easy
first one flat rate+variable rate=amount paid flat rate=35 variable=15 times hours, so if h=hours then and amount paied is 95 35+15h=95 is da equation if we solve mins 35 both sides and divide both sides by 15 h=4
2nd one add 5 to both sides and times 4 both sides c/4=9 c=36
3rd photo add 6 to both sides y+6-6≥12+6 y+0≥18 y≥18
