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myrzilka [38]
3 years ago
15

How to do this equation by elimination 8x +14y= 4 and -6 + -7y =-10

Mathematics
2 answers:
svet-max [94.6K]3 years ago
5 0
8x + 14y = 4
-6x - 7y=-10  / *2

8x + 14y=4
-12x -14y= -20
_________________
-4x=-16 => x=4; y= -2
Leokris [45]3 years ago
4 0

Answer:

y=4/7, x=-1/2

Step-by-step explanation:

Elimination is when you add the equations together

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How many solutions does 6 - 3x = 4 - x - 3 - 2x have?
White raven [17]

Answer:

No Solution

Step-by-step explanation:

6 - 3x = 4 - x - 3 - 2x  (Given)

6 - 3x = -1 -3x (combine like terms)

7 (addition)

The x cancels each other out so no solution.

7 0
3 years ago
How many solutions does 3 - 2x = 5 - x + 3 + 4x have?
vitfil [10]

Well let's see.

3-2x=5-x+3+4x \\3-2x=8+3x \\-5x=5 \\x=-1 \\

The equation has exactly one solution.

Hope this helps.

5 0
3 years ago
The interior angles formed by the side of a hexagon have measures of them up to 720° what is the measure of angle a
timofeeve [1]

Answer:

n = 6

Step-by-step explanation:

the formula for interior angle is ( n-2)

but we given the measure of one angle, so solve

720 = (n - 2)180

720/180 = (n - 2)

4 = (n - 2)

combine the like terms

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6 = n


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3 years ago
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