Write the value of n that makes statement true (3+n)+7=3+(6+7)

n = 6

Step-by-step explanation:

First lets combine like terms

(3 + n) + 7 = 3 + (6 + 7)

10 + n = 16

Now let’s subtract 10 on each side to isolate x

N = 6

Now let’s check our work by inputting x just to make sure

(3 + 6) + 7 = 3 + (6 + 7)

9 + 7 = 3 + 13

16 = 16

So we are right!

The smallest share is 90.

Step-by-step explanation:

1st share =5x

2nd share =3x

3rd share=4x

Now,

5x+3x+4x=360

12x=360

x=360/12

x=30

Again,

= 5x

= 5×30

= 150

= 3x

= 3×30

= 90

= 4x

= 4×30

= 120