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3 years ago

How to solve 0.5(5-7x)=8-(4x+6)

Mathematics

2 answers:

vladimir2022 [97]3 years ago

6 0

Answer:

x=-1

Step-by-step explanation:

Iteru [2.4K]3 years ago

4 0

0.5(5-7x)=8-(4x+6)To start distribute the 0.5 and the negative to get 2.5-3.5x=8-4x-6
minus the 6 from the to get 2.5-3.5x=2-4x
subtract the 2 from both sides (it doesn't matter what side you choose to leave the x on when you solve, you will still get the same answerI) to get 0.5-3.5x=-4x
add the 3.5 to both sides to get 0.5=-7.5x
divide by -7.5 to get x=-0.066666666

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Answer:

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Step-by-step explanation:

Given

$f(x) = a|x|$

$(x,f(x)) = (1,8)$

Solving (a): Another point

Substitute 1 for x and 8 for f(x) in $f(x) = a|x|$

$8 = a|1|$

Remove absolute bracket

$8 = a*1$

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$f(x) = 8|x|$

Let x = -1

$f(x) = 8|-1|$

Remove absolute bracket

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Solving (b): The value of a

This has been solved in (a) above

$a = 8$

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