Question

Tell whether the system has one​ solution, infinitely many​ solutions, or no solution.
15y=-10x+45
2x+3y+=9

Answer 1

15y=-10x+45
2x+3y+=9

15y+10x=45 -
  3y+  2x=9 / x 5 =>
15y+10x=45
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0y + 0x = 0
x,y ∈ R
infinitely many​ solutions