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3 years ago

Solve for x. 7(x + 1) = 21

2 answers:

6 0

Well its pretty easy if you look at the big picture, to solve for x you can divide 21 by 7 then you can subtract 1 from the quotient and boom you got x

mr Goodwill [35]3 years ago

4 0

7x + 7=21
21-7=14
7x=14
x=2

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Step-by-step explanation:

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3 years ago

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Rom4ik [11]

Answer:

option (b) is correct.

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Step-by-step explanation:

Given: $g(t)=t^2-t$ and $f(x)=1+x$

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Substitute, we get

$g(f(3)-2f(1))=g(4-2(2))$

Solving further , we get,

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Now evaluate $g(t)=t^2-t$ at t = 0 , we get,

$g(0)=0^2-0=0-0=0$

Thus, value of $g(f(3)-2f(1))$ is 0.

Thus, option (b) is correct.

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