please tell me it's answer by elimination method
Answers
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Step-by-step explanation:
Hey mate iam here to solve your question .
Here the equation :
2x + 3y = 13
5x - 4y = -2
first we have to eleminate any number ( x or y ) . suppose i want to eleminate x coefficient . if the number will same then only we can eleminate .
in the above 1 equation the coefficient of x is 2 . in 2 equation the coefficient of x is 5 .
the 2 equations of x is not equal so We have to equal the 2 equations coefficient of x .
then the equations like this :
2x + 3y = 13 × 5
5x - 4y = ( -2 ) × 2
10x + 15y = 65
10x - 8y = -4
change the symbols of 2 equation .
10x + 15y =65
-10x + 8y = 4
10 will be cancel
23y = 69
y = 69/23
y = 3
substitute the y value in 1st equation
2x + 3×3 = 13
2x + 9 = 13
2x = 13 - 9
2x = 4
x = 4 / 2
x = 2
if you want to eleminate y . do same . answer will be same . you can see in youtube also .
thanks