4lzha008 4lzha008
  • 18-07-2022
  • Mathematics
contestada

3 multiply by what is equal to 30 plus what

Respuesta :

Aisin
Aisin Aisin
  • 18-07-2022

Call the hidden variable here "x"

3x = 30 + x
3x - (30 + x) = 0
3x - 30 - x = 0
2x - 30 = 0
x = 30 : 2 = 15

Recheck : 3 x 15 = 30 + 15 -> 45 = 45 (true)

Answer Link

Otras preguntas

describe the ordered pair (12,24) in the context of the problem
The basis of any short story is___ A. Plot B. Characters C. Conflict
What is the predicate in this sentence: Our family likes different kinds of food.
what is the probability of choosing a king in a deck of 52 cards?
a mummy again endued with animation could not be so hideous as that wretch definition for the word endued 12th century 15th century or 20th century
Which United States president secured a detente with both China and the Soviet Union, ended U.S. involvement in Vietnam, and resigned after the Watergate scanda
what fraction of £1 is 72p
Two times a number plus three times another number number equals 13. The sum of the two numbers is 7 . What are the numbers
what is the volume of the a cube with a side of length 11 units A. 33 units B. 121 units C. 1331 units D. 14641 units
Mark the statement if it correctly describes achievements of the Han dynasty. A. Trade with other parts of the world was expanded. B. A civil service system bas