emiliodgaleas emiliodgaleas
  • 07-01-2022
  • Mathematics
contestada

x - y = -1 ; 3x - 2y = 6

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miachirinos
miachirinos miachirinos
  • 07-01-2022
Solve for the first variable in one of the equations, then substitute the result into the other equation.

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Hedgehog68
Hedgehog68 Hedgehog68
  • 07-01-2022

Answer:

x = 8

y = 9

Step-by-step explanation:

x - y = -1

Add y to both sides to get x by itself:

x = -1 + y

3(-1 + y) - 2y = 6

-3 + 3y - 2y = 6

-3 + y = 6

y = 9

x - 9 = -1

x = 8

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