Latest book Aptitude Question SOLUTION: How do you solve: 5x+3y-2z=112 7x+5y=70 3x+y=9z+96 and 3w+3x+6y+5z=10 4w+5x+8y+2z=15 3w+6x+7y+4z=30 4w+x+6y+3z=25