(3x+7)+(4x+9)=-58
first add like terms
7x+16=-58
subtract 16 from both sides
-7x=-74
divide -7 from both sides
x=10.6
its 10.6 units long
In all you have 54 buttons because if you add 10 plus 10 that equals 20 plus 34 and that gets 54 buttons in all
(the answer is) = 6466602
Answer:
100%-10%=90%
90%=36$ what about 10%=4$
36$+4$=40$
3/22 is the answer in simplest form