Question

resolva as seguintes equações me ajudem com
$a)250x + 100 = 500 - 200x$
$b)6x + 9x = 180 - 4x$
$24x + 140 = 180$
$280x - 40 = 140$
$180x + 190x = 360$

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Answer 1

Boa noite!

A)250x+100=500-200x

250x+200x=500-100

450x=400

x=400/450

x=0.8889....

B)6x+9x=180-4x

15x+4x=180

19x=180

x=180/19

x=9.47

C)24x+140=180

24x=180-140

24x=40

x=40/24

x=1.6667...

D)280x-40=140

280x=140+40

280x=180

x=180/280

x=0.642

E)180x+190x=360

370x=360

x=360/370

x=0.972

Answer 2

Resposta:

a) x=0,88

b) x= 9,47

c) x= 1,66

d) x= 0,64

e) x=0,97

Explicação passo-a-passo:

a) 250x + 100 = 500 - 200x

250x + 200x = 500 --100

450x = 400

x = 400/450

x= 0,88

b) 6x + 9x = 180 - 4x

6x + 9x + 4x = 180

19x = 180

x= 180/19

x= 9,47

c) 24x + 140 = 180

24x = 180 --140

24x =  40

x= 40/24

x=1,66

d) 280x - 40 = 140

280x = 140 +40

280x = 180

x= 180/280

x= 0,64

e) 180x + 190x = 360

370x= 360

x= 360/370

x= 0,97

Espero ter ajudado