stephanielafea11 stephanielafea11

16-01-2022
Mathematics

contestada

if 10a - 4 = 2a + 12 what is the value of a?

please explain how you can +4 to both sides in the second step, where did the +4 come from?

Respuesta :

hornincampbe04 hornincampbe04

16-01-2022

Answer:

A=3

Step-by-step explanation:

10a-4=2a+12

10a-4+4=2a+12+4

10a=2a+16

10a-2a=2a-2a+16

8a=16

8/8a =16/8

a=2

Answer Link

DanielLee2026 DanielLee2026

16-01-2022

Answer:

a = 2

Step-by-step explanation:

10a - 4 = 2a + 12

-> -2a -2a

-> 8a - 4 = 12

-> + 4 + 4

-> 8a = 16

-> a =2

Answer Link

Otras preguntas

For the reaction: 6Li(s)+N2(g)→2Li3N(s) Determine: the mass of N2 needed to react with 0.536 moles of Li. the number of moles of Li required to make 46.4 g of L

what is one reason that thomas paine thinks the colonies stand a good chance against the british

The purpose of active reading is to engage with the text that you read share important information with others entertain others who are interested remain in sha

why did the crown pass the so-called intolerable acts

Which sentence correctly forms the plural of the letter r? A. I wrote extra rs' at the end of roarrr to show the sound the lion made. B. I wrote extra r's at th

A diamond has a density of 3.5 g/cm^3. What is the mass of a diamond with a volume of 0.3 cm^3? A) 11 g B) 1.2 g C) 1.05 g D) 0.086 g

For the reaction: 6Li(s)+N2(g)→2Li3N(s) Determine: the mass of N2 needed to react with 0.536 moles of Li. the number of moles of Li required to make 46.4 g of L

which statement best describes the relationship between the industrial revolution and urbanization in great britain

The legislative branch can declare a law unconstitutional can grant pardons for federal crimes can declare war can appoint federal judges

12. Which of the following sentences has both a compound subject and a compound object? A. John and his wife danced and sang. B. Jane and Liza love books and mu