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Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.

{:[x+3y=7],[x-3y=-10]:}
One Solution
Infinitely Many Solutions
No Solutions

Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.\newlinex+3y=7x3y=10 \begin{array}{l} x+3 y=7 \\ x-3 y=-10 \end{array} \newlineOne Solution\newlineInfinitely Many Solutions\newlineNo Solutions

Full solution

Q. Determine if the following system of equations has no solutions, infinitely many solutions or exactly one solution.\newlinex+3y=7x3y=10 \begin{array}{l} x+3 y=7 \\ x-3 y=-10 \end{array} \newlineOne Solution\newlineInfinitely Many Solutions\newlineNo Solutions
  1. Analyze Equations: Analyze the system of equations to determine if they are parallel, the same line, or intersecting lines.\newlineThe system of equations is:\newlinex+3y=7x + 3y = 7\newlinex3y=10x - 3y = -10\newlineWe can compare the coefficients of xx and yy in both equations to determine the relationship between the lines they represent.
  2. Compare Coefficients of xx: Compare the coefficients of xx in both equations.\newlineThe coefficient of xx in the first equation is 11, and the coefficient of xx in the second equation is also 11. Since the coefficients of xx are the same, the lines are either parallel or the same line.
  3. Compare Coefficients of y: Compare the coefficients of yy in both equations.\newlineThe coefficient of yy in the first equation is 33, and the coefficient of yy in the second equation is 3-3. Since the coefficients of yy are opposites, the lines are not parallel and must intersect.
  4. Compare Constants: Compare the constants in both equations.\newlineThe constant in the first equation is 77, and the constant in the second equation is 10-10. Since the constants are different, the lines are not the same line.
  5. Conclude Number of Solutions: Conclude the number of solutions based on the analysis.\newlineSince the lines are not parallel and not the same line, they must intersect at exactly one point. Therefore, the system of equations has exactly 11 solution.