Question

En esto también porfaaa

Answer 1

2x+5=19
2x=19-5
2x=14
x=14/2
x=7


x-1/2=5/4
x=5/4+1/2
x=7/4

Answer 2

2x+5 = 19
2x = 19-5
x = 14/2
x = 7

Comprobamos :

2 (7)+5= 19
14+5 = 19
19 = 19
________________

x-1/2 = 5/4
2x-1/2 = 5/4
4 (2x-1) = 2 (5)
8x-4= 10
8x = 10+4
x = 14/8
x = 7/4 .....respuesta

Comprobamos :

7/4 - 1/2 = 5/4
7 (2)/4 (2) - 1 (4)/2 (4) = 5/4
14/8 - 4 /8 = 5/4
10/8 = 5/4
5/4 = 5/4


Un abrazo.