solve by the method of your choice. Identify systems with no solution and systems with infinitely many solutions, using set notation to express their solution sets

solve by the method of your choice Identify systems with no solution and systems with infinitely many solutions using set notation to express their solution set class=

Respuesta :

Given,

The equation is

[tex]\begin{gathered} 5x+3y=1.............(1) \\ 3x+4y=-6............(2) \end{gathered}[/tex]

To find: Identify the systems with no solution and systems with infinitely many solutions.

Solutions: We will use the substitution method. After moving 3y to the right, we get:

[tex]\begin{gathered} 3y=1-5x \\ y=\frac{1-5x}{3} \\ y=\frac{1}{3}-\frac{5x}{3} \end{gathered}[/tex]

Substitute this in the second equation.

[tex]\begin{gathered} 3x+4y=-6 \\ 3x+4\times(\frac{1}{3}-\frac{5x}{3})=-6 \\ 3x+\frac{4}{3}-\frac{20x}{3}=-6 \\ \frac{9x-20x}{3}=-6-\frac{4}{3} \end{gathered}[/tex]

Further solved as,

[tex]\begin{gathered} \frac{-11x}{3}=\frac{-18-4}{3} \\ \frac{-11x}{3}=\frac{-22}{3} \\ x=2 \end{gathered}[/tex]

Put the value of x in equation (1)

[tex]\begin{gathered} 5\times2+3y=1 \\ 3y=1-10 \\ 3y=-9 \\ y=-3 \end{gathered}[/tex]

Thus, the value of x and y is (2,-3)

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