Question

Resolva as equações.

A) X/5 + X/2 = 7/10

B) X/5 + 1 = 2x/3

Answer 1

a  X/5 + X/2 = 7/10

7x/10= 7/10
x= 1

b
X/5 + 1 = 2x/3

x/5= 2x-3/3 

10x- 15= 3x

7x=15
x=7/15

Answer 2

a) X/5 + X/2 = 7/10

 2X+5X/10 = 7/10
 7X/10 = 7/10
 
X = 1

b) X/5 + 1 = 2X/3
1 = 2X/3 - X/5
1 = 10X-3X/15
1 = 7X/15

X = 2,14