If 2x + 3y = 5 and 3x + 2y = 10, than x - y = ________
Answers
Answer:
0
Step-by-step explanation:
First equation is equal to the second equation
2nd is the multiple of 1st equation
so,x is 1 and y is 1
Answer:
2x + 3y = 5.........(I)equa. 3x + 2y = 10......(ii)
6x + 9y = 15.......(iii) 6x + 4y = 20.....(iv)
6x + 9y = 15.......(iii)
6x + 4y = 20.....(iv)
(-) (-) (-)
.....................................
+5y = -5
y =5/-5. = -1
y = -1.
putting the value of y = -1 in equa(i)
2x + 3y = 5.........(I)equa
Or, 2x + 3 x -1 = 5.
Or, 2x + -3 = 5.
Or, 2x -3 = 5.
Or, 2x = 5 + 3.
Or, 2x = 8.
Or, x = 8/2 = 4.
Or, x = 4.
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. . x = 4 and y = -1. (Ans.)
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