Tuesday

September 2, 2014

September 2, 2014

Posted by **guy** on Monday, February 6, 2012 at 10:08pm.

- math -
**Reiny**, Monday, February 6, 2012 at 10:29pmStrange way to type it, I read it as

8x-9y = -15

-4x = 19+y

I would double the 2nd:

-8x = 38+2y

or

8x + 2y = -38

8x - 9y = -15

subtract them

11y = -23

y = -32/11

sub into original 2nd

-4x = 19 - 23/11

-4x = 186/11

x = -186/44

x = -186/44 , y = -23/11

**Answer this Question**

**Related Questions**

Math 116AA - Solve using the multiplication method 5/6x=-7/6 X=

Math - Solve the following system of equations using the cross multiplication ...

Maths - Solve:- 5ax+6by=28 , 3ax+4by=18 using cross multiplication method

Math - Ali tosses 3 number cubes,and then multiplies the results using the ...

Math Help - Ali tosses 3 number cubes,and then multiplies the results using the ...

algebra - solve using the multiplication principle -3a<-15 solve usins ...

Math 2 - John solved 1/5 divided by 10 by using a related multiplication ...

algebra - Q: when graphing the equation y = 4/3x + 2, the y intercept is? A: (0,...

math - Multiply. Use the lattice method. 277*32= I hope your teacher does not ...

math - Can someone please check my work? Solve using substitution method 1. 3x+...