Answer:
b - 8
Step-by-step explanation:
-2b - 6 +3b -2
re arranging
-2b + 3b -6 -2
b - 8
The grid lines will help you find an exact solution (assuming the two lines actually cross at a grid intersection point). However, the two lines may intersect somewhere off the grid lines which is when an estimation will be the next best thing.
When 
![t=\cos A+\sin A\in[-\sqrt{2};\sqrt{2}]\approx[-1.4142;1.4142]](https://tex.z-dn.net/?f=%20t%3D%5Ccos%20A%2B%5Csin%20A%5Cin%5B-%5Csqrt%7B2%7D%3B%5Csqrt%7B2%7D%5D%5Capprox%5B-1.4142%3B1.4142%5D%20)
and there is only one answer t = 1.
For 
both values are correct.
Answer:
x = 11.
Step-by-step explanation:
We have 2 lines crossing 3 parallel lines so:
5/6 = x-1 / 12
6(x-1) = 5*12
6x - 6 = 60
6x = 66
x = 11.
