I cannot provide you with a model, but the 30% discount should be applied first. 60*(70/100) = 42. Therefore, after the 30% discount, the cost will be $42. After that, Dawn should use her coupon. It will then get you 42*(85/100) = 35.70. Therefore, she would pay $35.70.
Add or subtract like terms 2x+3y=5x-y 7x=2y since you can’t divide or add any more like terms together there isn’t anything else to solve answer ~ 7x=2y
