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3 years ago

5. Solve for each inverse. a. If y = 4x - 10, solve for x.

Mathematics

1 answer:

GREYUIT [131]3 years ago

5 0

Answer:

x = $\frac{y+10}{4}$

Step-by-step explanation:

Given

y = 4x - 10 ( add 10 to both sides )

y + 10 = 4x ( divide both sides by 4 )

$\frac{y+10}{4}$ = x

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Solve 6x^2 - 42 = 0 for the exact values of x

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Answer:

The values of x are

$x=-\sqrt{7} , x=\sqrt{7}$

Step-by-step explanation:

we have

$6x^{2}-42=0$

Solve for x

Adds 42 both sides

$6x^{2}-42+42=0+42$

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Divide by 6 both sides

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simplify

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square root both sides

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therefore

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$x=-\sqrt{7} , x=\sqrt{7}$

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Step-by-step explanation:

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