X+4x+6x=
All of the variables are x so you don't have to do anything
6x+4x=10x
there is still one x left
x = 1
10x+x = 11x
The lenght of your ruler is 6inches or approximately 15cm.
It's 18 it means 18 times 3 becomes 54 and that's how you get it
A fraction that is equivalent to -3/2 would be -9/6
A great form to prove this is by using a calculator and dividing -9 by 6 this should get you the answer of 1.5!
Hope this helps!
Answer:
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