D(x) = 2x − 4 and c(x) = 2x − 7 Find (d + c)(3)
1 answer:
Answer: 1
Step-by-step explanation:
Find (d + c)(3) The x value is 3 so you plug in 3 for the x's in the equation
d(x) = 2x − 4
d(3) = 2(3) - 4
d(3) = 2
c(x) = 2x − 7
c(3) = 2(3) - 7
c(3) = -1
Now you plug in the value of d and c into your original equation which is (d+c)(3)
(2 + (-1)) = 1
This means (d+c)(3) = 1
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