3(x+2) + 5x= -9
How do you solve this

= − 15/8

Explanation:

[Problem] 3( + 2) + 5 = −9

[Distribute] 3 + 6 + 5 = −9

[Add Like Terms] 8 + 6 = −9

[Factor] 8x + 6 - 6 = -9 - 6

[Simplify] 8=−15

[Simplify] = − 15/8

5/12, or 5: 12

step-by-step explanation:

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