Answer:
8(11+x) = 123,
Where, x = unknown number
Step-by-step explanation:
Let x be the unknown number,
Since, Sum of 11 and x = 11 + x
Eight times of the sum of 11 and x = 8 × sum of 11 and x
= 8(11 + x)
According to the question,
Eight times of the sum of 11 and x = 123
⇒ 8(11+x) = 123
Which is the required equation.
