Question

Simplify the following expression 2x+1+7x

Answer 1

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

Answer 2

9x + 1

Explanation:

2x + 1 + 7x

= 9x + 1