Asked by Fe
solve the system. Give the x-value of the solution.
3x-5y=16 and -9x+15=48
answer key:
7
0
no solution
infinite number solution
3x-5y=16 and -9x+15=48
answer key:
7
0
no solution
infinite number solution
Answers
Answered by
Reiny
3x-5y=16
-9x+15=48
notice that if you divide the 2nd by -3 , you get
3x - 5y = -16
clearly you will have two different parallel lines, thus no solution.
or
if we subtract:
3x-5y=16
3x-5y=-16
0 = 32
not very likely !!!! , so no solution
-9x+15=48
notice that if you divide the 2nd by -3 , you get
3x - 5y = -16
clearly you will have two different parallel lines, thus no solution.
or
if we subtract:
3x-5y=16
3x-5y=-16
0 = 32
not very likely !!!! , so no solution
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