Answer:
644 percent
Step-by-step explanation:
2x + 5x = 2x + 5 +13
2x - 2x + 5x= 18
5x = 18
x = 18/5
18/5 is your answer
Y= -1x-1
The slope is going down in a 1 to 1 ratio, so the slope is -1. The line crosses the x axis at -1, so the y intercept is -1