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I need help 9th grade math
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18 votes
I need help 9th grade math

I need help 9th grade math-example-1
User Lorie
by
3.4k points

2 Answers

6 votes

g(x) be n

Now

  • n+6x+2=10x+7

Interchange x

  • n+2=10x-6x+7
  • n+2=4x+7
  • n=4x+7-2
  • n=4x+5

Option D

User Aleksandr Vishnyakov
by
3.4k points
14 votes

(f + g)(x) is another way of writing f(x) + g(x).

Given that

(f + g)(x) = 10x + 7

f(x) = 6x + 2

it follows that

g(x) = (f + g)(x) - f(x)

g(x) = (10x + 7) - (6x + 2)

g(x) = 4x + 5

User Kaskelotti
by
3.6k points
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