-2x + 9x What is the answer

Mathematics

2 answers:

Verdich [7]2 years ago

8 0

Answer: +7x

Step-by-step explanation: Since both terms contain an x, you can add them together by simply adding their coefficients. Coefficients are just your number in front of your variables. So if -2 + 9 = +7, -2x + 9x = +7x.

Blababa [14]2 years ago

7 0

Answer: $7x$

Remove "x" and add

-2 + 9 = 7

Add "x" back

7 -----> 7x

Note: When adding/subtracting problems like these remove "x" and then add/subtract normaly. When you get your answer put x back.

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