Question

como se resolveria (5×+3×):2+1=15 ?

Answer 1

(5x+3x):2+1=15 

(8x):2 + 1 = 15

4x = 15 - 1

4x = 14

x = 14/4

x  = 7/2

Answer 2

Resolver.

(5x + 3x)/2  + 1 = 15
8x/2 + 1 = 15
8x/2 = 15 - 1
4x = 14
x = 14/4        Simplificas sacas mitad
x = (14/2)/(4/2)
x = 7/2

Respuesta.
x = 7/2