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0.1x = -0.2y - 0.200.3x + 0.6y = -0.6solve by substituting ​

User JackJoe
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1 Answer

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Final answer:

The student's question involved solving a linear system with substitution, which resulted in a contradictory equation, indicating there are no solutions as the lines are parallel.

Step-by-step explanation:

The question involves solving a system of linear equations using substitution. The given equations are:

  • 0.1x = -0.2y (Equation 1)
  • 0.3x + 0.6y = -0.6 (Equation 2)

First, solve Equation 1 for x:

  • x = -2y (Substituted x in terms of y)

Next, substitute the value of x from Equation 1 into Equation 2:

  • 0.3(-2y) + 0.6y = -0.6
  • -0.6y + 0.6y = -0.6
  • 0 = -0.6

This results in a contradictory statement, indicating that there are no solutions to the system, implying the lines are parallel and do not intersect.

User Ratsbane
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