Posted by ** jay jay** on Monday, July 14, 2008 at 8:09pm.

Solve by eliminnation methods

2x-4y=5

2x-4y=6

solve the system by elimination method

5x+2y= -13

7x-3y=17

Solve

x+6<-7 or x+6>4

Determine whether the given numbers are solutions of the inequality

8,-10,-18,-3

y-8>2y-3

Solve by the substitutioj method

2m+n=9

m-5n=10

- Math -
**drwls**, Tuesday, July 15, 2008 at 5:35pm
Please post such problems separately and show your work. If you are unfamiliar with the elimination and substitution methods for solving simultaneous equations, referenc material can be provided.

Your first question has no solution because the two equations are incompatible. They represent two parallel lines.

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