Question

OLDUN!
7. Write equations and solve them:
one-third of a number is increased by 7, the sum will be 21.
Girlf z is multiplied hy 8 thn
11
A1​

Answer 1

Answer:

42

Step-by-step explanation:

1\3x+7=21

1\3x=21-7=14

x=14×3=42

Answer 2

Answer:

Let the number be x

Now,

(1/3)x+7=21

=(1/3)x=21-7

=(1/3)x=14

=x=14×3

=x=42

Thus, the number is 42