Wednesday

April 16, 2014

April 16, 2014

Posted by **Richard** on Thursday, October 11, 2012 at 4:42pm.

6a+2b = -48

-6a+b = 57

What is the solution set ( , )?

- Algebra -
**bobpursley**, Thursday, October 11, 2012 at 5:03pmadd the equations.

3b=9

b=3

Now for a, by elimination

multipy the second equation by -2

12a-2b=-114

add now the first and this equation, giving

18a=-162

b=9

**Related Questions**

Math! - 6a + 5b = 10 , 6a - b = -110 a=________ b=_________ 6a + 5b = 10 6a - b...

algebra - Given g(x) = –2x – 1, find g(3a). G(3a)=-2(3a)-1 = -6a-1 = -5 is this ...

Am I doing Algerba right? - 6a for a = 3 and a = -4 So is it A. 6a = 6*3 = 18? B...

math - solve by substitution: a-1.2b=-3 0.2b+0.6a=12

Algebra - (9a^3b^4-12a^2b^5+6ab^7)/(6a^2b^3)

Math - Use the method of substitution to solve the linear equation! 6a=6-b 6a=5-...

algebra - Is this correct? subtract (4a^3+2b^3)-(6a^3+5a^2b-2ab^2+2b^3) answer...

Algebra - (3a^2+6ab-a-2b)/(9a^2-6a+1)

Math - 6a(3a-2) + 12b(3a-2) Is it correct if i multiplied 6a by 3a then 6a by -2...

math - 3a^2b + 6a^2b 9a^4b^2