Question

solve forx=
I mark as brilliant​

Answer 1

Answer:

= 4(5-x) + x(5-x)/ 2(7-x) + x(7-x) = 1

= 20-4x + 5x-x²/14-2x + 7x-x² = 1

= 20+x - x² / 14+5x-x² = 1

= 10 + x - x²/ 7 + 5x - x²= 1

= 10+ x - x² = 7 + 5x- x²

= 10-7= 5x-x -x²+x²

= 3= 4x

= x = 4/3