# How do you solve the simultaneous equations 3x - 2y = -9  and 4x + 5y = -1/2?

Aug 2, 2015

x=-2, y= $\frac{3}{2}$

#### Explanation:

Use elimination method. To eliminate x, multiply first equation by 4 and 2nd equation by 3 and subtract.

-8y-15y= $- 36 + \frac{3}{2} , - 23 y = - \frac{69}{2}$. This gives $y = \frac{3}{2.}$

Now substituting y= 3/2 in the first equation we have 3x=-9+3= -6.

This would give x= -2