2 years ago

What’s the solution to

Mathematics

1 answer:

finlep [7]2 years ago

4 0

Answer:

Step-by-step explanation:

subtract 9 from 7 and is negative 2 then the last value is C

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(32-n)10________________

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Solve the following system of equations<br>2x – 3y = 6<br>4x+2y=4

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Answer:

$\boxed{(\frac{3}{2} ,-1)}$

Step-by-step explanation:

$\left \{ {{2x-3y=6} \atop {4x+2y=4}} \right.$

It seems this system of equations would be solved easier using the elimination method (the x and y values are lined up).

Multiply everything in the first equation by -2 (we want the 4x to be able to cancel out with a -4x).

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Now line up the equations (they are already lined up - convenient) and add them from top to bottom.

$\left \{ {{-4x+6y=-12} \atop {4x+2y=4}} \right.$

The -4x and 4x are opposites, so they cancel out.

Adding 6y and 2y gives you 8y, and adding -12 and 4 gives you -8.

$8y=-8$

Divide both sides by 8.

$y=-1$

Since you have the y-value you can substitute this in to the second (or first equation, it doesn't necessarily matter) equation.

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Simplify.

$4x -2=4$

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$4x=6$

Divide both sides by 4.

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The final answer is $x=\frac{3}{2} ,~y=-1$ .

$(\frac{3}{2} ,-1)$

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