Answer:
-11x+12
Step-by-step explanation:
(x^2-4x+3)-(x^2+7x-9)
x^2-x^2-4x-7x+3-(-9)
-11x+3+9
-11x+12
Solve for x by simplifying both sides of the equation, then isolating the variable.
x = 4
You find a common denominator (the bottom one) and then add the numerator (the top) but you don't add the denominator, you just make it the same
15 times D= 300
the 15 is pages
D is pages per day
300 is amount of total pages