Terrionnia
Terrionnia Terrionnia
  • 17-02-2017
  • Mathematics
contestada

15 - t + 8t = -13
4a + 11 - a = 2

Respuesta :

IsabellaRosette
IsabellaRosette IsabellaRosette
  • 17-02-2017
15-t + 8t = -13
15 + 7t = -13
7t = -13-15
7t = -28
t = -4

4a + 11-a = 2
3a = 2-11
3a = -9
a = -3
Answer Link
apologiabiology
apologiabiology apologiabiology
  • 17-02-2017
remember you can do anything to an equation as long as you do it to both sides


15-1t+8t=-13
15+7t=-13
minus 15 both sides
7t=-28
divide both sides by 7
t=-4



4a+11-1a=2
3a+11=2
minus 11 both sides
3a=-9
divide by 3 both sides
a=-3
Answer Link

Otras preguntas

Es dudoso que mucha gente ___________ comer mariscos. A. prefieren B. prefiera C. prefieran D. prefiere
What is x^2 -10x-24 factored completely?
Why did people think slavery was dying in 1790?
Michael is 4 times as old as Brandon and is also 27 years older than Brandon. How old is Michael?
If molecules in a substance move FASTER will the TEMPERATURE increase or decrease?
Select all that apply. Mark the statements that correctly describe British rule in India. A. The British improved the communications systems in India. B. The Br
Find the perimeter of the smaller figure given. Answer is not 110.
In a certain weather forecast, the chance of a thunderstorm is stated 20% chance. Express the indicated degree of likelihood as a probability value between 0 an
You have learned about fermentation and how it can be used to produce food products like yogurt and bread. What other products—food and non-food items—can it be
Why were epicycles necessary in ptolemy’s model of the universe?