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Alja [10]
3 years ago
12

(08.01)Consider the following pair of equations:

Mathematics
2 answers:
Nana76 [90]3 years ago
8 0

Answer:

from the first equation

-x-y=-5

-x=y-5

: x=5-y. eqn 3

y= x+1

subtitute x in this equation

:- y= 5-y+1

y+y= 6

2y = 6

y=3

subtitute y in eqn 3

x=y-5

:- x=3-5

x= -2

Nat2105 [25]3 years ago
6 0

Answer:

(2,3)

Step-by-step explanation:

this is the only coordinate that can be plugged in and still be true. therefore, this is the only value that intersect and creates a point.

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2 years ago
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Find the solution to the following system using substitution or elimination: y = 3x + 2 y = -2x - 8 O A. (-5,-) OB. (-2,-4) O C.
mr Goodwill [35]

Answer:

B. (-2,-4)

Explanation

Given equations:

   y = 3x + 2

   y = -2x - 8

Solving both equations will yield the values of x and y;

Solution:

   y = 3x + 2    ----- (i)

   y = -2x - 8   ------ (ii)

Using substitution method, input equation i, into ii

    3x + 2 = -2x - 8

Collect like terms and solve;

     3x + 2x = -8 -2

         5x  = -10

            x  = -2

Then put x = -2 into i, to find y

      y = (-2 x 3) + 2

       y = -6 + 2 = -4

So, the solution of the equation is B. (-2,-4)

6 0
3 years ago
9x + 8y3 – 7 = 3y3 -3<br> 9x+ 5y = 0
Vikki [24]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
Simplify the expression. 16 x 4 -4
Lorico [155]

Answer:

The answer is 60

Step-by-step explanation:

16 x 4 - 4

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Hope this helped!

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2 years ago
Evaluate 5a-2b if a=3, and b=2
Anna71 [15]

Answer:

11

Step-by-step explanation:

4 0
4 years ago
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