Answer:
-6
Step-by-step explanation:
9x-5 equals -45
you multiply like normal but there's a negative so with that your going to have to make the whole equation negative but if there was 2 negative numbers it would then be just 45 because negatives knock eachother out
4x² - 8x= 0
4x(x -2) = 0
: 4x = 0 or x - 2 = 0
4x = 0
Dividing by 4
x = 0/4
x = 0
And
x - 2 = 0
x = 2
11.
(87+91+86+x)/4=90.
x=96.
13.
50×y > 130.
the lowest number could be 3, because 50×2=120, which is less than 130.
2b2t
