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what is the result of subtracting the secound equation from the first -4x-2y=-2 x-2y=9

Sagot :

Answer:

When we subtract the second equation  x-2y=9 from the first equation  4x-2y=-2, we get the value of x = 11/5.

Therefore, the required result is:

x = 11/5

Step-by-step explanation:

Given

The first equation

[tex]-4x-2y=-2[/tex]

The second equation

[tex]x-2y=9[/tex]

Let us subtract the second equation from the first equation

[tex]-4x-2y=-2[/tex]

[tex]-[/tex]

[tex]\:\underline{x-2y=9}[/tex]

[tex]-4x - 2y - (x - 2y) = -2 - 9[/tex]

[tex]-4x -2y -x + 2y = -2-9[/tex]

[tex]-5x = -11[/tex]

divide both sides by -5

[tex]\frac{-5x}{-5}=\frac{-11}{-5}[/tex]

Simplify

[tex]x=\frac{11}{5}[/tex]

Thus, when we subtract the second equation  x-2y=9 from the first equation  4x-2y=-2, we get the value of x = 11/5.

Therefore, the required result is:

x = 11/5