200以上 x/2 y=0.8 7/x y/2=10 by elimination method 192952

3x – 2y – 4 = 0 asked Mar 22 in Linear Equations by Kshitijrathore ( 434k points) pair

X/2 y=0.8 7/x y/2=10 by elimination method- Solve the system by the elimination method 3x 2y 7 = 0 5x y 3 = 0 To eliminate y, the LCM is 2 Whi Get the answers you need, now! By adding the two equations together you eliminate the y variable which allows you to solve x=6 Alternately, subtract one equation form the other eliminating the x and allowing y=4 Given 1color(white)("XXX")xy=10 2color(white)("XXX")xy=2 Add 1 and 2 3color(white)("XXX")2x=12 rarr4color(white)("XXX")x=6 Subtract 2 from 1