Homework Help: Algebra

Posted by G on Friday, March 28, 2008 at 8:40pm.

I am trying to solve the sytems of equations using the elimination method.

2x+4y=10
-3x+3y=-6

I tied multiplying the first equation by 2 and the second by 4. Then I tried multiplying the first equation by -3 and the secondy by 3.

The book says the answers are 3,1.

I am not getting these answers.

Algebra - Jake1214, Friday, March 28, 2008 at 8:44pm
Try to multiply first equation by 3 and second equation by 2. You will end up with 6x and -6x, you can eliminate those and then use the substitution method to find y.
Algebra - bobpursley, Friday, March 28, 2008 at 8:45pm
Multiply the second equation by 2/3
2x+4y=10
-2x+2y=-4

add the equations
6y=6
y=1

Put that y back into either equation, and solve for x.

Answer this Question

Related Questions

Algebra - Solving system of linear equations by using the apropiate method name ...
Pre-Calculus - Solve for x,y,z, & w using the Gauss-Jordan Elimination ...
Algebra - can you solve this set of equations using the elimination method? 3x+...
algebra - I need a step by step explanation on how to add these two equations 2x...
ALGEBRA 1!PLZ HELP! - Use the Substitution method to solve the system of ...
Algebra - Solving for the sytems of equiation using the elimination method. Book...
Math - Solve by eliminnation methods 2x-4y=5 2x-4y=6 solve the system by ...
maths - simultaneous equations x + 2y = 4 3x - 4y = 7 x=3 and y = 1/2 i need to ...
math,algebra II - I need someone to explain to me step by step the process of ...
algebra - Solve using the elimination method. Show your work. If the system has ...

For Further Reading

First Name:
School Subject:
Answer: