Question

solve following equations using cross multiplication method

1. 3x-5y=4

2. 9x-2y=7

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Answer 1

The given system of equation is ax + by = (a + b)/2; 3x + 5y = 4 From (i), we get 2(ax + by) = a + b 2ax+2by-(a+b)=0 From (ii), we get 3x + 5y - 4 = 0 Here, a_{1} = 2a, b_{1} = 2b, c_{1} = - (a + b); a_{2} = 3, b_{2} = 5, c_{2} = - 4

Answer 2

Step-by-step explanation:

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