Question

Solve the following system of equations. 9x + 4y = 4 -5x + 7y = 7

Answer 1

Answer:

this is the answer with steps

hope it helps!

Answer 2

Answer:

The solution is:

$(0, 1)$

Step-by-step explanation:

We have the following equations

$9x + 4y = 4$

$-5x + 7y = 7$

To solve the system multiply by $\frac{9}{5}$ the second equation and add it to the first equation

$-5*\frac{9}{5}x + 7\frac{9}{5}y = 7\frac{9}{5}$

$-9x + \frac{63}{5}y = \frac{63}{5}$

$9x + 4y = 4$

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$\frac{83}{5}y=\frac{83}{5}$

$y=1$

Now substitute the value of y in any of the two equations and solve for x

$9x + 4(1) = 4$

$9x +4 = 4$

$9x = 4-4$

$9x = 0$

$x=0$

The solution is:

$(0, 1)$