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stich3 [128]
4 years ago
12

Use the system of equations to answer the questions. 2x + 3y = 3 y = 8 – 3x The value of y from the second equation is substitut

ed back into the first equation. What is the resulting equation? What is the value of x? What is the value of y?
Mathematics
2 answers:
AysviL [449]4 years ago
8 0

Answer:

  • 2x +3(8 -3x) = 3
  • x = 3
  • y = -1

Step-by-step explanation:

The second equation tells you ...

  y = 8 -3x

Using this expression in the first equation gives you ...

  2x +3(8 -3x) = 3

  2x +24 -9x = 3 . . . . . eliminate parentheses

  21 = 7x . . . . . . . . . . .  add 7x -3

  3 = x . . . . . . . . . . . . . . divide by 7

  y = 8 -3×3 = -1 . . . . . . use the second equation to find y

The solution is (x, y) = (3, -1).

balandron [24]4 years ago
6 0

Answer:

the correct answers for edu are 2x+3(8-3x)=3 than 3 and last -1

Step-by-step explanation:

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