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Lerok [7]
3 years ago
13

Whats the value of x? 3x - 5(x - 5) = -7 + 2x + 12

Mathematics
2 answers:
Katena32 [7]3 years ago
7 0

Answer:

x=5 :)

Step-by-step explanation:

Westkost [7]3 years ago
6 0

Answer:

x = 5

Step-by-step explanation:

Given

3x - 5(x - 5) = - 7 + 2x + 12 ← distribute and simplify left side

3x - 5x + 25 = 2x + 5

- 2x + 25 = 2x + 5 ( subtract 2x from both sides )

- 4x + 25 = 5 ( subtract 25 from both sides )

- 4x = - 20 ( divide both sides by - 4 )

x = 5

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3 years ago
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This id hard please help me do this
svlad2 [7]
In this problem, we're going to use the 'PEMDAS' method.

First, we're doing the problem in the parenthesis.
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Step-by-step explanation:

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2 years ago
What is the slope of the line that passes through the points (9,4) and (9,-5)?
jeka94

Answer:

undefined

Step-by-step explanation:

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6 0
3 years ago
What is the equation of a line that passes through the points (3,6) and (8, 4)?
Delvig [45]

Answer:

In the equation y=mx+b, 'm' is the slope of the line and 'b' is the y-intercept.  

First, you should find the slope of the line.  To do this, use the equation M=y2-y1/x2-x1.  Using the two given points (3,6) and (8,4), you can solve for M.  

M=4-6/8-3

M=-2/5 (-0.4 in decimal form)

Now, your equation is y=-0.4x+b

Next you must solve for b to find the y-intercept.  You can do this by subbing one of the given points in for x and y.  

Using the point (3,6):

y=-0.4x+b

6=-0.4(3)+b

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6+1.2=b

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y=-0.4x+7.2 (IN FRACTION FORM: y=-2/5x+36/5)

Step-by-step explanation:

7 0
3 years ago
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