Saturday

November 22, 2014

November 22, 2014

Posted by **Donna** on Tuesday, February 15, 2011 at 5:34pm.

y+2x=3

y+2x=-4

y+2x=3 -1(y+2x=3)-y-2x=-4

now add the two equation

y-2x=3

-y-2x-4

the answer would be -4y=7

then divided -4=7 answer 1.75

I no that there is more to this answer I am just stuck and not sure if this is right are not.

- algebra -
**PsyDAG**, Wednesday, February 16, 2011 at 12:08pmYou are not doing substitution.

y = 3 - 2x

y + 2x = -4

Substitute 3 - 2x for y in second equation and solve for x. Insert that value into the first equation and solve for y. Check by inserting both values into the second equation.

**Answer this Question**

**Related Questions**

algebra - I need to know if I am doing this problem right when sustitution ...

math,algebra II - I need someone to explain to me step by step the process of ...

Algebra 2345678!! - Solve the system of equations using the Addition method. 2a...

algebra - which method do you use to solve this equation.(x-1)^2=7. Is it the ...

Algebra1 - how do i sove this problem -12q+4=8q-6 -12+4=8q-6 First you want to ...

Algebra - Can you explain to me how to solve this equation? 2/3x-9=1/3 1/3=.33 ...

Int Algebra - The difference of two numbers is 7. The sum of the numbers is -1. ...

algebra--distributive - how would you do this prob. negative4-(5y+6) = negative ...

math - My problem I have involves a method that requires using the quadratic ...

need help in math, - Translate to a system of equations and solve using the ...