2x +3y =13 , 5x - 4y = -2 solve in any method
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2x + 3y = 13__________(1)
5x - 4y =-2___________(2)
multiply eq.(1) by 5 and eq.(2) by 2
so, we get
10x + 15y = 65________(3)
10x - 8y =-4________(4)
by eliminating method,
10x + 15y = 65
10x - 8y =-4
- + +
-------------------
23y = 69
y = 3
putting the value of y in equation(1)
10x + 15(3) = 65
10x + 45 = 65
10x = 65 - 45
x = 20/10
x = 2
5x - 4y =-2___________(2)
multiply eq.(1) by 5 and eq.(2) by 2
so, we get
10x + 15y = 65________(3)
10x - 8y =-4________(4)
by eliminating method,
10x + 15y = 65
10x - 8y =-4
- + +
-------------------
23y = 69
y = 3
putting the value of y in equation(1)
10x + 15(3) = 65
10x + 45 = 65
10x = 65 - 45
x = 20/10
x = 2
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