7x-2-(3x-9)-(x+7)
=7x-2-3x+9-x-7
=7x-3x-x-2+9-7
=3x
Answer:
100-11=89
Step-by-step explanation:
8 subtracted from the product of 9 and x
Hope this helps!
(-5, 7) - Quadrant II
(8 1/2, -4) - Quadrant IV
(0,5) - y axis