Question

Calcule as expressões:

a) x+1/3 = ⅔
b) 2x+1/5 = 8/2
c) 3x+5/7 = 32/8
d) x+2/3 = 72/5​

Answer 1

Resposta:

A) x= 2/3- 1/3

x= 1/3

B)2x+1/5= 4

2x= 4-1/5

2x= 19/5

x= 19/10

C) 3x+5/7= 4

3x= 4 -5/7

3x= 23/7

x= 23/21

D) x = 72/5 -2/3

x= 206/15