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3 years ago

Evaluate the expression when a = -3 and b=5. a-4b x I ?

Mathematics

1 answer:

Juliette [100K]3 years ago

8 0

-3-4(5)
-4(5)=-20
-3-20
The answers is -23

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Step-by-step explanation:

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3 years ago

Question 8 (1 point)

AleksandrR [38]

Answer:

solution is x=3

Step-by-step explanation:

$logx-log3=log(x-2)$

apply log property

log a- log b= log a/b

$logx-log3=log(x-2)\\log (\frac{x}{3} )=log(x-2)$

we have log on both sides

so we remove the log and make the arguments equal

$\frac{x}{3} = x-2$

solve for x, multiply whole equation by 3

$x=3(x-2)\\x=3x-6\\x-3x=-6\\-2x=-6\\x=3$

now plug in 3 for x and check

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3 years ago