Question

calcule o valor de x sabendo que as retas r e s sao paralelas

Answer 1

x/x+3 = 2x-5/2x-1

x(2x-1) = (x+3) (2x-5)
2x²-x = 2x² -5x+6x-15
2x²-2x²-x+5x-6x = -15
4x-6x = -15
-2x = -15. (.1)
2x = 15
x= 15/2
x= 7,5