Homework Help: algebra

Posted by stella on Monday, May 23, 2011 at 2:54pm.

Solve the system of equations: what is the y-value in the solution?

3x - 5y = -16 and 2x + 5y = 31

algebra - Reiny, Monday, May 23, 2011 at 5:24pm
add them:
5x = 15
x = 3

sub into 2x+5y=31
6 + 5y = 31
5y = 25
y = 5

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