What is 5x + 5 = 3(5x - 4) - 10x ?

-2.7 bause you subtract 5x on both sides and that would become 5= 3(-4) -10x
3(-4)= -12 and so that will be 5=-12-10x then you add 12 to each side. that would then become 27=-10x But we still need to get rid of the - on the 10x so 10x=-27
so the answer is -2.7.

5x + 5= 15x - 12 - 10x
5x+ 5= 5x - 12
You add the 15x and -10x which will give you a 5x then you minus the 5x from the left or right to the other 5x, but it doesn't really matter which 5x you minus (or use) then you will be left with 5 = -12 which gives you a no solution as your answer.

Okay so for every triangle has three angles that always add up to 180 degrees. and to tell the difference between whether they are secure, right or obtuse is that acute: has one angle that is less than 90 degrees. right triangle means there is at least one angle that is exactly 90 degrees. and an obtuse angle has an angle that is bigger than 180 degrees. i’ll do #13 as an example: 13. 40 and 50 so if every triangle has 180 degrees 40+50= 90 degrees then180-90= 90 degrees so the third angle is 90 degrees and because this triangle has a 90 degree angle it means it is a right triangle