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AleksAgata [21]
3 years ago
7

I need help to solve 5×-2y=-2 -×+4y=4

Mathematics
1 answer:
kotegsom [21]3 years ago
7 0

Answer:

x=3 and y=4x=3 and y=4

Step-by-step explanation:

x=3 and y=4

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What are the classifications of each system?
xz_007 [3.2K]
X + 5x = -2
      6x = -2
       6      6
        x = ⁻¹/₃

    x + 5y = 4
  ⁻¹/₃ + 5y = 4
+ ¹/₃        + ¹/₃
          5y = 4¹/₃
           5      5
            y = ¹³/₁₅
      (x, y) = (⁻¹/₃, ¹³/₁₅)
It is consistent and independent.

y = 3x + 4
-2x + y = 4

        -2x + y = 4
-2x + 3x + 4 = 4
           x + 4 = 4
               - 4  - 4
                 x = 0
y = 3x + 4
y = 3(0) + 4
y = 0 + 4
y = 4
(x, y) = (0, 4)
It is consistent and independent.

y = -x + 3
2x + 2y = 6

             2x + 2y = 6
    2x + 2(-x + 3) = 6
2x + 2(-x) + 2(3) = 6
         2x - 2x + 6 = 6
                        6 = 6
It is consistent and dependent.

5x + 2y = -4
 5x - 2y = 3
      10x = -1
       10    10 
          x = ⁻¹/₁₀

     5x + 2y = -4
5(⁻¹/₁₀) + 2y = -4
      ⁻¹/₂ + 2y = -4
     + ¹/₂         + ¹/₂
              2y = -3¹/₂
               2       2
                y = -1³/₄
          (x, y) = (⁻¹/₁₀, -1³/₄)
It is consistent and independent.
4 0
4 years ago
Read 2 more answers
3 plus the product of 2 and h
kherson [118]
That would be

2h + 3

Hope that helps :)

8 0
3 years ago
What is the smallest value of 122
attashe74 [19]
121.5
121.5 rounded to nearest whole number is 122 --> 121.49 rounded to the nearest whole number is 121
4 0
3 years ago
9+10=21 EEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEE
faltersainse [42]

Answer: 19 but yes

Step-by-step explanation:

5 0
3 years ago
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Which function describes this table of values?
VashaNatasha [74]

Answer:

which function describes this table of values x y 0 0

5 0
4 years ago
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