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3 years ago

4 3/10 - ( 2 2/5x+ 5 1/2) = 1/2(-3 3/5x + 1 1/5)

Mathematics

1 answer:

koban [17]3 years ago

7 0

Answer:

x = -223/11 = -20.273

Step-by-step explanation:

Step 1 : Simplify: 11/5

Step 2: Simplify 33/5

Step 3 :

Adding fractions which have a common denominator

Step 4: Simplify: 1/2

Step 5 : see below

Step 6 : see below

Pulling out like terms/factors

Step 7 : Simplify: 51/2

Step 8: Simplify: 22/5

Step 10: Simplify: 43/10

Step 9 :

Calculating the Least Common Multiple

Step 11 :

Adding fractions which have a common denominator

Done.

Hope this helps.

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Zina [86]

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3 years ago

Read 2 more answers

Create a matrix. use a graphing calculator to solve the system using the rref function.

zloy xaker [14]

Answer:

$x=-\dfrac{44}{7}$

$y=\dfrac{58}{7}$

Step-by-step explanation:

Arrange the equations so that all the variables are in columns (x as the first column, y as the second, equals a number as the third):

-11x - 4y = 36

5x + 5y = -10

Define and edit Matrix A. We need a 3 x 2 matrix. Input the coefficients and constant:

$\left[\begin{array}{ccc}-11&-4&36\\5&5&-10\end{array}\right]$

Find rref function, enter matrix A: rref([A]) (press enter)

This gives you:

$\left[\begin{array}{ccc}1&0&-\frac{44}{7}\\0&1&\frac{58}{7}\end{array}\right]$

which means:

$x=-\dfrac{44}{7}$

$y=\dfrac{58}{7}$

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2 years ago

Use addition to solve the linear system of equations.

lesya692 [45]

Here, Equations are: x - y = 6
y = x - 4
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Here, we can see L.H.S of both equations are equal but R.H.S is unequal so the system has no solution at all.

In short, Your Answer would be "No Solution"

Hope this helps!

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3 years ago

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