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3 years ago

What are the steps to get the answer to -5x = -2x - 3

Mathematics

2 answers:

Norma-Jean [14]3 years ago

6 0

Answer:

x=1

Step-by-step explanation

:−5x=−2x−3

Step 1: Add 2x to both sides.

−5x+2x=−2x−3+2x

−3x=−3

Step 2: Divide both sides by -3.

−3x

−3

x=1

ohaa [14]3 years ago

3 0

Answer:

x=1

Step-by-step explanation:

first you need to separate the variables from the other numbers

-5x = -2x - 3

-3x=-3

then divide of -3

x=1

you also can then check your work:

-5(1)=-2(1)-3

-5=-2-3

-5=-5 the answer checks out!

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4 years ago

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miskamm [114]

Answer:

$-3+i\sqrt{3} , 1+\sqrt{3}$

Step-by-step explanation:

Given that alpha and beta be conjugate complex numbers

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Let

$\alpha = x+iy\\\beta = x-iy$

since they are conjugates

$\alpha-\beta = x+iy-(x-iy)\\= 2iy= 2i\sqrt{3} \\y =\sqrt{3}$

$\frac{\alpha}{\beta^2} }\\=\frac{x+i\sqrt{3} }{(x-i\sqrt{3})^2} \\=\frac{x+i\sqrt{3}}{x^2-3-2i\sqrt{3}} \\=\frac{x+i\sqrt{3}((x^2-3+2i\sqrt{3}) }{(x^2-3-2i\sqrt{3)}(x^2-3-2i\sqrt{3})}$

Imaginary part of the above =0

i.e. $\sqrt{3} (x^2-3)+2x\sqrt{3} =0\\x^2+2x-3=0\\(x+3)(x-1) =0\\x=-3,1$

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3 years ago