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fgiga [73]
3 years ago
14

3x+2y=11 7x-y=3 systems of linear equations 

Mathematics
1 answer:
mariarad [96]3 years ago
4 0
\begin{cases}3x+2y=11 \\ 7x-y=3 \end{cases}\\ \\\begin{cases}3x+2*(7x-3)=11 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}3x+14x-6=11 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}17x =11+6 \\ y=7x- 3 \end{cases}

\begin{cases}17x =17 \ \ /:17 \\ y=7x- 3 \end{cases}\\ \\\begin{cases}x=1\\ y=7*1- 3 \end{cases}\\ \\\begin{cases}x=1 \\ y=4\end{cases}
 

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-24 - 10K= -8(k+ 4) - 2K
Paraphin [41]

Answer:

No solution for K

Step-by-step explanation:

-24 - 10K = -8(k+4) -2K

-24 - 10K = -8*k + -8*4 -2K

-24 -10K = -8K +-32 -2K

-24 - 10K = -8K -32 -2K

-24 + 32 = -8K - 2K + 10K

8 = 0K

Therefore, no solution can be given for this equation

Hope this helped :3

6 0
3 years ago
Solve <br> | 2x + 6 | = x
Lemur [1.5K]

Answer:

1)<u> </u><u>soln</u>,

or,2x+6=x

or,2x-x= -6

or,x= -6

•°•x= -6 Ans#

4 0
3 years ago
What is the domain of the absolute value f(x) equals -.5 |X -2|-4
lozanna [386]

Answer:

Domain: All Real Numbers or (-∞, ∞)

Step-by-step explanation:

Domain is the set of x-values that can be inputted into function f(x).

We see that any value of <em>x</em> can be plugged into the function.

∴ Our answer is all real numbers

5 0
3 years ago
Write the equations bellow in slope-intercept form. Determine if the lines are parallel, perpendicular, or neither
dexar [7]
A parallel is the correct answer
6 0
3 years ago
an=7+(n-1)2 is the general rule for the nth term of the arithmetic sequence 7,9,11,13,15 ... true or false ?
vovikov84 [41]

Answer:

True

Step-by-step explanation:

The n th term rule for an arithmetic sequence is

a_{n} = a + (n - 1)d

where a is the first term and d the common difference

here d = 9 - 7 = 2 and a = 7, thus

a_{n} = 7 + 2(n - 1)

5 0
3 years ago
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