5x - 6y = -25
4x - 3y + 20 = 0
----------------------
5x - 6y = -25
4x - 3y = -20 / -2
----------------------
5x - 6y = -25
-8x + 6y = 40
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-3x= 15 5x -6y = -25
X=15/-3 5(-5) - 6y = -25
X= -5 -25 - 6y = -25
-6y = -25+25
y = 0/-6
y= 0