F(x) = 9x + 3 ; x =-10

f(-10) = -87

Step-by-step explanation:

x = -10

f(x) = 9x + 3

f(-10) = 9(-10) + 3        Replace x with the given number

= -90 + 3                    Multiply 9 and -10

f(-10) = -87                  Add -90 and 3

first one is a: renaming a fraction. second one is c: de-c

step-by-step explanation:

my explanation is that these were the answers on edg : )

3. (5x + 1) - (-10x + 6)

simplify the answer choice. combine like terms. remember to distribute the negative to the terms inside the second parenthesis. also remember that two negatives = one positive, and one of each sign = negative.

- (-10x + 6) = + 10x - 6

simplify. combine like terms:

5x + 1 + 10x - 6

5x + 10x + 1 - 6

15x - 5

∴ it is your answer

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