Respuesta :
Equation 1 and 2 should be multiplied by 5 and 4 respectively, to eliminate x variable from equations
Given :
- Equation 1 : 4x + 5y = 62 , Equation 2 : 5x - 3y = 22
To get x eliminated, we want to have same coefficient of 'x' in both equations.
So, we multiply Eq 1 with 5 and Eq 2 with 4, to get common multiple of 4 & 5 = 20 as the equal x coefficient.
Hence, Eq 1 = 20x + 25y = 310
Also, Eq 2 = 20x - 12y = 88
Solving : (-) (+) (-)
By elimination method, x gets eliminated. We get 25y + 12y = 222
This can be solved further to get values of x & y.
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