Question 193017
1) Determine how many solutions exist
2) Use either elimination or substitution to find the solutions (if any)
3. Graph the two lines, labeling the x-intercepts, y-intercepts, and points of intersections. 
Question:
x/3 - y/5 = 4
3x/4 + 2y/3 = 6 
Get rid of fractions
5x - 3y = 60 eqn 1
9x + 8y = 72 eqn 2
40x - 24y = 480 eqn 1 times 8
27x + 24y = 216 eqn 2 times 3
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67x = 696
x = 696/67 xxxxxxxxxxxxxxxxxxxxxxxxxx
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Sub into eqn 1
5*696/67 - 3y = 60 = 4020/67
-3y = (4020-3480)/67
y = -180/67 yyyyyyyyyyyyyyyyyyyyyyyyy
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To do the graphs, dl the FREE software at
www.padowan.dk.com/graph/