Which expression is equivalent to −4 + 9 − 2x − 9x?
−11x + 5
−11x + 13
−11x − 5
11x + 13
The expression −4 + 9 − 2x − 9x simplifies to -11x + 5.
Therefore, the correct answer is:
-11x + 5
To simplify the expression −4 + 9 − 2x − 9x, combine the like terms:
-4 + 9 = 5
-2x - 9x = -11x
Therefore, the expression -4 + 9 - 2x - 9x is equivalent to -11x + 5.
So, the correct option is −11x + 5.
To find the equivalent expression, you need to simplify the given expression by combining like terms.
The given expression is −4 + 9 − 2x − 9x.
First, combine the constant terms: −4 + 9 = 5.
Next, combine the x terms: −2x − 9x = -11x.
So, the simplified expression is −11x + 5.
Therefore, the equivalent expression is −11x + 5, and that is the answer.