Sunday

February 1, 2015

February 1, 2015

Posted by **kim** on Friday, February 24, 2012 at 9:17pm.

- algebra -
**luther**, Friday, February 24, 2012 at 10:49pmthere are so many ways of doing this problem! you can solve for x or y.

let's solve for x.

take -4x+y=41

when u solve x= 1/4y-41/4

plug that value of x into the other equation: 6x+3y=-21

it should look like this

6(1/4y-41/4)+3y=-21 and solve for y

after u solve for y

plug it in to whatever equation & solve for x and then u check it.

you can do it vice versa & solve for y first if you want too:)

- algebra -
**Reiny**, Friday, February 24, 2012 at 10:50pmfrom the 2nd: y = 41-4x

sub into the 1st:

6x + 3y = -21

6x + 3(41-4x) = -21

6x +123 - 12x = -21

-6x = -144

x = 24

sub into y = 41-4x = 41-4(24) = -55

x = 24

y = -55

**Answer this Question**

**Related Questions**

Algebra 1 - bobpursey, In this problem you helped me with earlier: Solve using ...

Substitution Method-Plz help - Use the Substitution method to solve the system ...

substitution method - Solve by substitution method please help me solve this. I ...

Algebra II - How do you solve the linear equations x+y=5 3x-y=3 by use of the ...

algebra - Solve by elimination method. 2r-5s=-33 5r+2s=48 Solve by substitution ...

math ALGEBRA - Solve by either the substitution method or the addition or ...

algebra - use the Substitution Method. Please give it a try. y = 3x + 4 5x + 3y...

Linear Equations - Can you please help solve this equation using the ...

math substitution method - use the substitution method to solve 7x+5y=-26 x=28-...

Substitution Method - Use the Substitution method to solve the system of ...