**3x-4y=10 4x+5=23 ?**

**Answer:**

We can solve the second equation first because it has only one unknown variable.

4x+5=23

So, let’s subtract 5 from both sides of the equation (this is legal because it keeps both sides equal to one another)

4x=18

Now we divide both sides by 4…

x = 4.5

Now that we know x, we can plug its value into the first equation

3(4.5) -4y = 10

Simplifying…

13.5 - 4y = 10

Subtracting 13.5 from both sides

-4y = -3.5

DIviding both sides by -4

y = 0.875 or 7/8