Select all pairs of like terms in the expression 3x−4+x+7 .(2 points) Responses 3x and x 3x and x 3x and −4 3x and −4 x and −7 x and −7 −4 and 7 −4 and 7

Answer 1

In the expression \(3x - 4 + x + 7\), we can identify pairs of like terms. Like terms are those that have the same variable raised to the same power.

The terms in the expression are:

• \(3x\)
• \(-4\)
• \(x\)
• \(7\)

Now, let's identify the like terms:

1. \(3x\) and \(x\): These are like terms because they both contain the variable \(x\).
2. \(-4\) and \(7\): These are also like terms as they are both constant terms.

Therefore, the pairs of like terms are:

• \(3x\) and \(x\)
• \(-4\) and \(7\)

The correct responses are:

• 3x and x
• −4 and 7