4x+2y=16 5x-4y=20 solving systems of equations by elimination

elimination-method

#1

4x+2y=16
5x-4y=20
solving systems of equations by elimination

Answer:

multiply the first equation by 2
8 x + 4y = 32
5x - 4y = 20
adding both equations we have
13x = 52
x = 52/13 = 4
y = (16-4x)/2 = 16-4*4 / 2 = 0