spiderzan123 spiderzan123
  • 15-06-2016
  • Mathematics
contestada

When –3 is multiplied by the sum of a number and 8, the result is –21. Find the number.

Respuesta :

Kunchan
Kunchan Kunchan
  • 15-06-2016
let's take the number as a
-3 (a + 8) = -21
a + 8 = (-21 / -3)
a + 8 = 7
a = -1

that number is -1
Answer Link

Otras preguntas

Alberto feeds his fish the the same amount each day.A 2-ounce jar of fish food flakes has enough food for Alberto to feed his fish for 100 days.How many ounce o
Instructions:Select the correct answer. How did the invention of the Gutenberg press affect the Renaissance?
Help!! Math question
what is the perimeter of this rectangle?
Read the sentence below and use context clues to determine the meaning of the word pilfering: There appears to be a raccoon visiting our yard at night and pilfe
Which is a long-term benefit of fitness?: A) Sleep disorder B) Diabetes C)Mental health D) Heart attack?
speed of sound is 343 Ms at 20 degrees Celsius. The frequency heard from the sound is 256 Hz. what is the sounds wavelength?
What are advantages of using uranium as an energy source
is order of operations and number of operations the same thing?
One role of th skeletal system is to produce