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3 years ago

-6x+5-4(x-1)=-4x-(5x-3)+4

1 answer:

5 0

Hello there!

-6x + 5 - 4(x - 1) = -4x - (5x - 3) + 4

We need to use the distributive form

-6x + 5 + (-4)(x) + (-4)(-1) = -4x - 5x + 3 + 4

-6x + 5 - 4x + 4 = -4x - 5x + 3 + 4

-10x + 9 = -9x + 7

Now we can subtract 9 from both sides

-10x + 9 - 9 = -9x + 7 - 9

-10x = -9x - 2

Add 9x to both sides

-10x + 9x = -9x + 9x - 2

-x = -2

We cannot leave it with a negative sign, divide both sides by -1

-x/-1 = -2/-1

x = 2

I hope the steps are clear to understand. If you have any misunderstanding feel free to let me know.

As always, I am here to help!

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Step-by-step explanation:

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3 years ago

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3 years ago

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Dovator [93]

Answer:

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Step-by-step explanation:

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3 years ago

Find the number of roots for the following equation. 9x5 + 12x4 – x2 + 8x + 4=0

skad [1K]

Answer:

5 roots

Step-by-step explanation:

Given

$9x^5 + 12x^4 - x^2 + 8x + 4 = 0$

Required

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Hence, the number of roots is 5

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3 years ago

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$2d+\dfrac{1}{5}=\dfrac{3}{5}\ \ \ \ \ |subtract\ \dfrac{1}{5}\ from\ both\ sides\\\\2d=\dfrac{2}{5}\ \ \ \ |divide\ both\ sides\ by\ 2\\\\\boxed{d=\frac{1}{5}}$

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3 years ago