3x+7=-x-1
move -x to the other side
sign changes from -x to +x
3x+x+7=-x+x-1
3x+x+7=-1
4x+7=-1
move 7 to the other side
sign changes from +7 to -7
4x+7-7=-1-7
4x=-8
Divide by 4 for both sides
4x/4=-8/4
Answer: x=-2
Answer:
each friend gets 13, there is one left over though
Step-by-step explanation:
C = 2 pi r
C = 2(13) pi
C = 26 pi
Answer:
It is the 1st answer.
Step-by-step explanation:
27. twice as many as 16 would be 32 and 32-5 is 27