# Algebra

posted by .

use elimination to solve this problem
x +8y = 3
4x - 2y = 7

• Algebra -

first one times 4 ----> 4x + 32y = 12
keep the the 2nd ----> 4x - 2y = 7
subtract them

34y = 5
y = 5/34
sub into original first
x + 8(5/34) = 3
x = 3 - 40/34 = 31/17

x = 31/17 , y = 5/34

## Similar Questions

1. ### algebra

how do you solve this problem by elimination method 3x+4y=2 6x+8y=4
2. ### algebra

I just need a quick check before I hand in my work if you would...Thanks. 1. I am to use the intercepts to graph the equation x+3y=6 I used the formula y=mx+b using 3 and -6 for x I got these as my ordered pairs to graph (3, 1), (-6, …
3. ### Math

Use elimination to solve each system of equations. x+y-2z=10 8x-9y-z=5 3x+4y+2z=-10 I need to figure out what x,y, and z each equal. I must use the elimination method.
4. ### algebra

how do you solve this problem by elimination method 5r-3s=14 3r+5s=56
5. ### Elementary Algebra

Can you help me solve this problem by elimination?
6. ### algebra

solve the linear system from problem 1 using elimination 4x-y=5 4x+4y=-4

8. ### math

Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x - 3y = 7 Would the elimination method have been your first choice to solve this problem?
9. ### Algebra

Bosnian, I really could use your help on one other problem. I have been working on it and what helps is that you show the steps. Solve using the elimination method. 5x - 7y = -16, 2x + 8y = 26 Thanks so much for your help
10. ### Algebra 1

bobpursey, In this problem you helped me with earlier: Solve using any appropriate method. y = 2× - 5, y = ½× + 1 Substitution, substitute for y. 2×-5=½ × + 1 3/2 x=6 x=4 y= 2*4-5=3 How did you choose which method you were going …

More Similar Questions