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14-10-2021
Mathematics

contestada

If g(x) = 2x + 7
Find x if g(x)=9

Respuesta :

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14-10-2021

Answer:

x = 1

Step-by-step explanation:

g(x) = 2x + 7

g(x) = 9

9 = 2x + 7

Subtract 2x on both sides

9 - 2x = 7

Subtract 9 on both sides

-2x = 7 - 9

Simplify

-2x = -2

Divide by -2 on both sides

x = 1

Cross check

9 = 2(1) + 7

9 = 9

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