Question

3. tentukan nilai n !
Plssssssssssssss​

Answer 1

Jawaban:

a. n= 3

b. n= 16

c. n= 7

d. n= 42

Penjelasan dengan langkah-langkah:

a.

-8 + (6+n)= -8+9

6+n= 9

n= 9-6

n= 3

b.

sifat asosiatif

(n+13)+11= 16 + (13+11)

n+(13+11)= 16+(13+11)

n= 16

c.

distributif

(-21 + n) × 13= (-21 × 13) + (7 × 13)

(-21 × 13) + (n × 13)= (-21× 13) + (7 × 13)

n × 13= 7 × 13

n= 7

d.

35 × (42 - 20)= 35 × n - 35 × 20

35 × 42 - 32 × 20 = 35 × n - 35 × 20

n= 42