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Solve the system by elimination -5x+5y= 15 (Multiply by -3) 15x-15y = -45 -4x - 3y = 19 (Multiply by -5) 20x + 15y
Solve the system by elimination -5x+5y= 15 (Multiply by -3) 15x-15y = -45 -4x - 3y = 19 (Multiply by -5) 20x + 15y = -95 -5(-4)+5y= 15 20+5y=15 -20 20 5y=-5 5 5 y= 1 35x=-140 35 35 x= -4
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Elementary Technical Mathematics
Authors: Dale Ewen
12th Edition
1337630586, 978-1337630580
