Asked by jess

Solve by the elimination method

0.3x-0.2y=4
0.4x+0.5y= - 55/17


Thank you
Answered by bobpursley
multiply the first equation by 5, the second equation by2

1.5x-y=20
.8x+y=-110/17

add the equations

2.3x=20-110/17
multipy both sides by 17
39.1x=340-110
x= 230/39.1