Algerbra One?

1 ⤊

I have to solve this inequality using elimination. How would I do it??
Here's the problem:
3x-1/2y=10
5x+1/4y=8

2007-03-10 02:51:52 · 1 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

1 answers

3x-1/2y=10
5x+1/4y=8 Double this one and add it to the first equation to get rid of the y.

3x-1/2y=10
10x + 1/2y = 16
13x = 26
x = 2

Put the 2 in either of the original equations to find y.
3x - 1/2y = 10
6 - 1/2 y = 10
-1/2 y = 4 Multiply by -2.
y = -8

2007-03-10 02:57:49 · answer #1 · answered by ecolink 7 · 1⤊ 0⤋