Question

resolva as equações

a) 27x=243


b)5x+2=1253x-4

Answer 1

a)
27x = 243
x = 243/27
x = 9

b)
5x+2 = 1253x-4
5x-1253x = -4-2
-1248x= -6
x = $\frac{ -6}{-1248}$

Answer 2

Olá, bom dia ☺

Resoluções:

a)

27x = 243.

x=243/27.

x=9.

b)

5x+2=1253x-4

5x - 1253x = - 4 - 2.

-1248x= - 6 .(-1).

1248x=6.

x=6/1248 : 6/6 = 1/208.

x=1/208.

Bons estudos :)