What is (1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x), simplified?
(1.6x + 7.3) + (–0.6x + 2) – (7.8 – 3.4x)
1.6x + 7.3 – 0.6x + 2 – 7.8 + 3.4x
1.6x – 0.6x + 3.4x + 7.3 + 2 – 7.8

Step-by-step explanation:

To simplify this we use order of operation PEMDAS

WE start with removing the parenthesis and then we combine like terms

Multiply negative sign inside the third parenthesis

Now we combine like terms

so simplified expression is

the answer to this question is 3/19

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