Question

(3x​ –7x)+(3x​ +4x).

Answer 1

Answer: 3x

Step-by-step explanation: since they are all like terms, you start from the left in the parentheses and subtract 3x from -7x which equals -4x. Then add 3x to 4x which is 7x. Then add -4x to 7x and you get your answer which is 3x

Answer 2

A positive 3x

Explanation:

since both parts have the same variable you could add them or subtract them together

(3x-7x)+(3x+4x)

You will subtract 3x-7x which will give you a negative 4x

You will do the same on the other side

Add 3x+4x and it will give you a positive 7x

-4x+7x=will give you an positive 3x

Hopes this helps