Thursday

February 26, 2015

February 26, 2015

Posted by **jasmine20** on Thursday, February 8, 2007 at 11:38pm.

Directions: Solve the system by substitution.

x + y = 12

y = 2x

this is what i did:

in the first equation i substituted y for what i have in the second equation so now it looks like this:

x +2x = 12

3x = 12

x = 4

now i substitute my x into the first equation to look like this:

4 + y = 12

y = 8

so the answer is for variable x its 4

for variable y is 8

right!

thank you.

**Answer this Question**

**Related Questions**

math,correction - can someone correct this for me please. Directions: Solve the ...

math,correction - can someone correct this for me. Directions: Solve the ...

math,correction - can someone correct this for me please. Directions: Evaluate ...

math - solve each system of equations by substitution. y=3x-9 please help ...

algebra - i need help with these problems (either a solution or how to plug them...

math,correction - can someone check these for me please.... problem#4 Directions...

Math Homework - Hello! I need help with these math questions, thanks! :) 1.) ...

Math please help!! - Solve the system using substitution. y = -2x + 5 3y = -x - ...

math, correction - can someone help me correct this Directions: Dtermine which ...

math, correction plz - Can someone correct these for me.PLZ Problem#1 Directions...