Respuesta :

Answer:

Step-by-step explanation:

hello :

x+x+(3x +7) = x+x+3x+7 = 5x+7

Answer:

5x + 7

Step-by-step explanation:

to solve the  expression requires following simple steps.

x+x+(3x +7)

we are going to open the bracket by just following the BODMAS rule

remeber the rule says

B............................................ bracket open

O............................................. of

D............................................. division

M............................................ multiplication

A............................................. addition

S............................................. subtraction

x+x+(3x +7)

x + x + 3x + 7

2x + 3x + 7

5x + 7