[ (12 - n)/7 ] = -1
12- n = -7
-n = -19
n = 19
You have ti distribute the 5n into the brackets.
so then youll have 15n^2 + 40n.
Answer:
The equation of the line is 
Step-by-step explanation:
Looks like you've already found the y-intercept and slope of this graph. Great! That's all the info we need to create an equation.
The equation of a line is always in
form, where k is the constant of proportionality (aka the slope) and b is the constant added (aka the y-intercept).
We know the slope is 3 and the y-intercept is 3, so we can put these values into the equation.

Hope this helped!
3x1000+2x100+4x10+6x1+7x(1/10)+8x(1/100)
You can tell before you divide 387 by 4, that the first digit of the qoutient is going to be in tens place, because 3 can't go into 4.