Asked by Myra
0.3x-0.2y=4,0.5x+0.5y=-15/9 solve
Answers
Answered by
Reiny
Multiply the first by 10
3x - 2y = 40
Multiply the second by 6
3x + 3y = -10
Now subtract them :
5y = -50
y = -10
then x = 20/3
3x - 2y = 40
Multiply the second by 6
3x + 3y = -10
Now subtract them :
5y = -50
y = -10
then x = 20/3
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