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Talja [164]
3 years ago
8

For what value of a is (a,9) a solution for the equation y=2x+1?

Mathematics
1 answer:
Ivahew [28]3 years ago
5 0

Answer:

Step-by-step explanation:

(a,9).......we dont know " a " (or x) but we do know y...it is 9

so sub in 9 for y and solve for x

y = 2x + 1

9 = 2x + 1

9 - 1 = 2x

8 = 2x

8/2 = x

4 = x <======= ur answer is D

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Step-by-step explanation:

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