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Darya [45]
3 years ago
15

What is the Value of X? 4x-4=4x

Mathematics
1 answer:
igomit [66]3 years ago
8 0

Answer:

X can be any number but what I think it is 8,

Step-by-step explanation:

Hope this helps

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Can someone help me plz
joja [24]

:

is it from a textbook

7 0
3 years ago
(x – 2) = –14(x – 8)
muminat

Isolate the variable by dividing each side by factors that don't contain the variable.

Exact Form:

x = 38/5

Decimal Form:

x = 7.6

Mixed Number Form:

x = 7/3/5

7 0
2 years ago
What would your salary each year be if you earned $5,000 per week?
choli [55]
Yearly salary would be 240,000 for 5,000 and 48,000 for 1,000 a week
8 0
3 years ago
Use a matrix to solve the system:
Romashka-Z-Leto [24]

Answer:

(2.83 , 1 , 4)

Step-by-step explanation:

2x+2y-z=4\\4x-2y-2z=2\\3x+3y-4z=-4\\

Rewrite these equations in matrix form

\left[\begin{array}{ccc}2&2&-1\\4&-2&-2\\3&3&-4\end{array}\right] \left[\begin{array}{ccc}x\\y\\z\end{array}\right]=\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\

we can write it like this,

AX=B\\X=A^{-1}B

so to solve it we need to take the inverse of the 3 x 3 matrix A then multiply it by B.

We get the inverse of matrix A,

A^{-1}=\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]  \\

now multiply the matrix with B

X=A^{-1}B\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}7/15&1/6&-1/5\\1/3&-1/6&0\\3/5&0&-2/5\end{array}\right]\left[\begin{array}{ccc}4\\2\\-4\end{array}\right] \\\\\\\left[\begin{array}{ccc}x\\y\\z\end{array}\right] =\left[\begin{array}{ccc}2.83\\1\\4\end{array}\right] \\

4 0
3 years ago
How many inches are in 3.5 yards?
Leno4ka [110]
126 inches (Ask me if you have any questions :) )
5 0
3 years ago
Read 2 more answers
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