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wlad13 [49]
4 years ago
13

33 points

Mathematics
1 answer:
Brrunno [24]4 years ago
8 0

Answer:

x=-5, y=-2

Step-by-step explanation:

6x+ 28 =y

5x-y=-23

Substitute 6x+28 in for y in the second equation

5 x-(6x+28)=-23

Distribute the negative sign

5x -6x-28 = -23

-x -28 = -23

Add 28 to each side

-x-28+28 = -23+28

-x = 5

Multiply by -1

x = -5

Now we need to solve for y

y = 6x+28

Substitute x=-5

y = 6(-5) + 28

y = -30+28

y = -2

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12 is at most a number decreased by seven
Karo-lina-s [1.5K]

Answer:

12 ≤ x - 7

Step-by-step explanation:

let "x" represent the number

The term decreased means subtraction.

The problem indicates that 12 cannot be greater than a number decreased by 7. Use ≤ which means less than or equal to.

≤ less than or equal to 12 means that 12 is the maximum value.

8 0
4 years ago
Write the linear equation 5x-15y=-8 in slope-intercept form?
mylen [45]
Y=(1/3)x+(8/15). Just subtract the 5x over and then divide everything by -15 to get y by itself. 
4 0
4 years ago
Solve for y please!!!!!!!!!!!!
sergij07 [2.7K]

Answer:

y=3r-230

Step-by-step explanation:

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5 0
3 years ago
16 X +12 over two equals 100
scoray [572]

The value of x in the given equation i.e \frac{16x+12}{2}=100 is 11.825

Given that equation  \frac{16x+12}{2}=100  and asked to evaluate the value of x in the given equation

⇒ \frac{16x+12}{2}=100(given equation)

To solve the given equation, need to use the various mathematical  operations i.e division and subtraction)

⇒8x+6=100 ( using the operation division)

⇒8x=100-6 (using the operation subtraction)

⇒8x=94

⇒x=\frac{94}{8}(using the operation division)

⇒x=11.825

By using the mathematical  operations i.e division and subtraction the value of x came as 11.825

⇒Therefore, The value of x in the given equation i.e \frac{16x+12}{2}=100 is 11.825

Learn more about equation here:

brainly.com/question/10413253

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6 0
2 years ago
MARK BRAINLIEST AND 12 POINTS
attashe74 [19]

Answer:

17

125

Step-by-step explanation:

exterior angle is equal to sum of interior opposite angle. so

( 2x + 6 ) + ( 5x ) = ( 8x - 11 )

7x + 6 = 8x - 11

x = 17

exterior angle = ( 8 * 17 ) - 11 = 125

8 0
3 years ago
Read 2 more answers
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