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nata0808 [166]
4 years ago
11

-2 (x - 8) + 4x= -12 what is X equals to ?

Mathematics
2 answers:
EastWind [94]4 years ago
8 0

-2 (x - 8) + 4x= -12

mutiply the bracket by -2

(-2)(x)= -2x

(-2)(-8)= 16

-2x+16+4x= -12

-2x+4x+16= -12 ( combine like terms)

2x+16= -12

move 16 to the other side

sign changes from +16 to -16

2x+16-16= -12-16

2x= -12-16

2x= -28

divide both sides by 2

2x/2= -28/2

Answer: x= -14

alexgriva [62]4 years ago
3 0

Answer : x= -14
I’m not even finna write all that because that person did but i did it on paper
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D\mathbf f(\mathbf x)=\begin{bmatrix}\dfrac{\partial f_1}{\partial x_1}&\dfrac{\partial f_1}{\partial x_2}&\cdots&\dfrac{\partial f_1}{\partial x_n}\\\dfrac{\partial f_2}{\partial x_1}&\dfrac{\partial f_2}{\partial x_2}&\cdots&\dfrac{\partial f_2}{\partial x_n}\\\vdots&\vdots&\ddots&\vdots\\\dfrac{\partial f_m}{\partial x_1}&\dfrac{\partial f_m}{\partial x_2}&\cdots&\dfrac{\partial f_n}{\partial x_n}\end{bmatrix}

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D f(x,y)=\begin{bmatrix}\dfrac{\partial(e^x)}{\partial x}&\dfrac{\partial(e^x)}{\partial y}\\\dfrac{\partial(\sin(xy))}{\partial x}&\dfrac{\partial(\sin(xy))}{\partial y}\end{bmatrix}=\begin{bmatrix}e^x&0\\y\cos(xy)&x\cos(xy)\end{bmatrix}

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Df(x,y,z)=\begin{bmatrix}1&0&1\\0&1&0\\1&-1&0\end{bmatrix}

5 0
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