What is
1. -2(n-9)+4
2. 6x - (2 - 3x)

1) -2n + 22

2) 9x - 2

Step-by-step explanation:

1. -2(n-9)+4

-2n + 18 + 4

-2n + 22

2. 6x - (2-3x)

6x - 2 + 3x

9x - 2

we have three similar triangles, because each has a right angle and shares an angle.   let's write the angles in order: opposite to short leg, long leg, hypotenuse.

cab similar to bad similar to cbd

or as ratios,

ca: ab: cb = ba: ad: bd = cb: bd: cd

we also know

ac = ad + cd

(ad+cd): ab: cb = ba: ad: bd = cb: bd: cd

(ad+cd)/cb=cb/cd

we have cb=6, ad=5 and seek x=cd.

we reject the negative root and conclude x=4

answer: 4

pls refer ro the top for answer