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