Question

bom dia,

Qual o valor de x em: 540 = 2x-20+x+25+x+15+x+3/2x

Answer 1

540 = 2x-20+x+25+x+15+x+3/2x
540+20-25-15=5x+3/2x
5x=540-20+3/2x
5x=520+3/2x mmc=2x

5x.2x=520.2x+3
10x²=1040x+3

10x²-1040x-3=0

  



 

Answer 2

540 = 2x-20+x+25+x+15+x+3/2x

540 = 5x + 20 + 3x ==> 1080 = 10x + 10 + 3x
                         2
13x = 1080-40

13x = 1040 ==> x = 80

x =