Solve 5y+34 = -2(-7y+1)

y=4

Step-by-step explanation:

The first step to solving this equation is to get rid of the brackets, which we do by multiplying each term on the brackets with the term outside it, so:

5y+34=-2*-7y+-2*1

Then we multiply and merge any like terms:

5y+34=14y-2

Now we need to move all y terms to one side and numbers on the other which we do by reversing the sign:

5y+34-5y+2=14y-2+2-5y

This leave us with:

9y=36

Now all that's left to do is divide both sides by 9 so we are left with:

y=4

Hope this helped!

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

incomplete question. how do you expect anyone to you when you do not post the question in its entirety?