Recall that a slope-intercept form of a linear equation is

Rearrange the given so that it follows that slope intercept form

The y-intercept is the value for which the linear function crosses the y-axis, this is when the value of x is equal to zero. The ordered pair therefore of the y-intercept is (0,-1).
2 pounds ---- 100%
x pounds -----18%
x=(2*18)/100=36/100=0.36 pounds
Answer:
The value of x is -125
Therefore x=-125
Step-by-step explanation:
Given that the expression is 
To solve the expression :

( by using the property
)
( expanding the power )
Let 

Now the value of x is 

Therefore x=-125
The value of x is -125