3x+4y=8, 7x-8y=-69 elimination

The value of x is equal to - 4.076The value of y is equal to 5.057

3x + 4y = 8

7x - 8y = - 69

To make this easier, we can multiply each term in the first equation by 2.

6x + 8y = 16

Now, we can use elimination to isolate one variable.

Combine equations.

13x = - 53

Divide both sides by 13.

x = - 4.076

We can plug this value of x into the equation to find the value of y.

3 (-4.076) + 4y = 8

-12.228 + 4y = 8

Add 12.228 to both sides.

4y = 20.228

Divide both sides by 4.

y = 5.057