7x -3 + 2x +6 choose from answers below
12x
9x + 3
9x -3
5x + 9
The answer is 9x + 3.
To simplify the expression 7x - 3 + 2x + 6, you need to combine like terms. Like terms are the terms that have the same variable raised to the same exponent.
In this expression, the like terms are 7x and 2x since they both have the variable x raised to the first power. Likewise, you have the constant terms -3 and 6.
To combine the like terms, add the coefficients of the x terms and the coefficients of the constant terms separately:
7x + 2x = 9x
-3 + 6 = 3
So, the simplified expression is 9x + 3.
Therefore, the correct answer is "9x + 3".
To simplify the expression 7x - 3 + 2x + 6, we can combine like terms.
The given expression has two terms with the variable x, which are 7x and 2x. To combine these terms, we add their coefficients: 7x + 2x = 9x.
Next, we combine the constant terms -3 and 6: -3 + 6 = 3.
Therefore, the simplified expression is 9x + 3.
So the correct answer is: 9x + 3.