Homework Help: Math

Posted by Shirley on Sunday, February 5, 2012 at 7:07pm.

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this.

10x + 5y = 52.5

30x – 7y = 80.5

Math - PsyDAG, Monday, February 6, 2012 at 10:28am
Multiply the first equation by 3, then subtract the second from it. Solve for y. Then insert the y value into one of the equations to find x. Then make your statement.

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