Question

Can someone tell me the answer to this and explain how to do it?

Answer 1

Combined the like terms . -2x+9 goes in the blank, bc 5-7=-2

Answer 2

-2x + 9 or -2 which is what the question asks

Explanation:

• we have to combine like terms which means terms that are similar
• in this, only 5x and -7x are like terms since both have x with them
• 9 will stay the same since it does not have a like term

5x + 9 + (-7x) = __x + 9

-2x + 9

• therefore, -2 goes in the blank