Posted by Jordan on Thursday, October 7, 2010 at 12:42pm.
Determine whether the point (1, 8) is a solution of the system
2x + 6y = 50
10x + 0y = 10
by substituting the point into each equation.
So far I have:
PLEASE HELP! I'm lost. I've had tutoring and still do not understand fully.
Intermediate Algebra - drwls, Thursday, October 7, 2010 at 12:59pm
Plug x=1 and y=8 into the two equations simultaneously and see if both are satisfied.
They both are.
2 + 48 = 50
10 = 10
Therefore (1,8) is the solution.
Your equation y=50-2x
Intermediate Algebra - drwls, Thursday, October 7, 2010 at 1:01pm
You are confusing SOLVING the two equations (which is possible by various means) with TRYING OUT a sample solution you have been given, to see if it works.
You have made the problem harder than it really is, and made mistakes in the process.
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