Answer:
2x+1+7x
2x+7x=-1
9x=-1
x=-1/9
Explanation:
collect the like terms then add
take 1 to the other side it will be negative
then divide by nine in fraction form it will be -1/9
9x + 1
2x + 1 + 7x
= 9x + 1
5.1m questions
6.7m answers