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love history [14]
3 years ago
12

Solve for r: 1/3r + 1 = -2/3r - 2

Mathematics
1 answer:
8_murik_8 [283]3 years ago
4 0
<span>Simplify the left side.
Multiply r by 1 to get r
Move all things containing r to the left side
divide each term by -6 than simplify</span>
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Shtirlitz [24]
It’s a diagram ur welcome
3 0
3 years ago
I have the picture attached
Lisa [10]

Answer:

y = 2/3x + 4

Step-by-step explanation:

First, we look at where the equation intersects the y axis. It intersects at y = 4, which means that in the end of the equation there must be a "+4", so we can rule out the first two.

Second, we look at the slope of the line. Slope is defined as rise over run. As you can see in the graph, the line moves up 2 units while moving right 3 units. That means the coefficient of x (which is the slope) will be 2/3, which means the answer is y = 2/3x + 4.

4 0
3 years ago
−4x+7y+5=0<br> x−3y=−5<br> ​ <br><br> How many solutions does the system have?
xeze [42]

   

Solution:  

Using Substitution Method:

-4x+7y=-5   (Equation 1)

x-3y=-5       (Equation 2)

get the value of x from Equation 2

x=3y-5     (Equation 3)  

Put the value of x from Equation 3 in Equation 1

-4(3y-5)+7y=-5

-4(3y)+20+7y=-5

-12y+7y=-5-20

-5y=-25

Negative sign on both sides cancels each other

y=25/5

y=5

Putting value of y in equation 3

x=3(5)-5

x=15-5

x=10

Therefore,   [x,y]=[10,5]

Using Elimination Method

-4x+7y=-5   (Equation 1)

x-3y=-5       (Equation 2)

Multiply equation 2 with -4 in order to eliminate the x term

-4(x-3y)=-5*4

-4x+12y=20     (Equation 3)

Adding Equation 1 and 3

-4x+7y=-5    

-4x+12y=20    

+    -     = -   (Change Of Sign with x and y terms)

-----------------

0x-5y = -25

-5y=-25

y=5  

Substituting y’s value is Equation 1

-4x+7(5)=-5

-4x+35=-5

-4x=-40

Cancellation of negative sign on both sides

x=40/4

x=10

[x,y]=[10,5]

3 0
3 years ago
How do you solve for x A=Bxt+C
emmasim [6.3K]
A=Bxt+C

A-C=Bxt+C-C
A-C=Bxt
A/Bt - C/Bt = x

4 0
3 years ago
14:56
pentagon [3]

Answer:

\dfrac{14}{56}=\dfrac{1}{4}

Step-by-step explanation:

We need to find an expression that is equivalent to 14:56.

So,

\dfrac{14}{56}=\dfrac{14}{14\times 4}\\\\=\dfrac{1}{4}

So, the equivalent expression of the given expression is \dfrac{1}{4}.

7 0
3 years ago
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