Step-by-step explanation:
work is shown and pictured
4X-4Y>28
X-Y>7 both side divide by 4
For this problem you have to isolate the variable. To do this you must inverse the operations. Multiply 18 by 5, then divide by 12 to get your answer of 7.5
X = -1.8 * 2.1
x = 3.78
don't know how i can write it longer
Hi! Sorry if this is wrong, but I believe it would be f(x)= |x+5|-4. This is because it shifts to the left, so it is adding 5 to the x in the absolute value bars. And it shifting 4 units down would be negative. Hope this helps!