Monday

September 22, 2014

September 22, 2014

Posted by **jean** on Wednesday, May 29, 2013 at 11:01pm.

x - 7y = 15

-3x + 21y = - 45

- algebra -
**Steve**, Thursday, May 30, 2013 at 11:03amThe 2nd equation is the 1st equation multiplied by -3. So, they are the same line, and there are infinitely many solutions.

**Answer this Question**

**Related Questions**

math - In the term 21y, what is ther literal coefficient? a. 2 b. 21 c. 21y d. y...

Math - solve for 9x-21y=28 -9x+21y=21 in elimination method

math need asap - 4x+5y=27 x=26-4y 4(26-4y) + 5y = 27 104 - 16y+ 5y = 27 -21y...

Algebra - y^4-10y^3+21y^2

algebra - 10y^3+y^2-21y

algebra - 10y^3+y^2-21y

8th grade Algebra - Use the Distributive property to rewrite the expression and ...

algebra - Can someone please show me how to solve this problem step by step ...

Geometry - What is y if 6y+1=21y+13

Algebra - Can someone please help me with math problem and explain to me step by...