91.3k views
2 votes
2a=−2+4(a+3)

a =
−4b=−5(3−b)+6

b =

2 Answers

3 votes

Explanation:

2a=6(a+3)

2a=6a+18

2a-6a=18

-4a=18

-4a/-4=18/-4

a=-4.5

User Frederic Adda
by
8.3k points
6 votes

Answer:

a = - 5 , b = 1

Explanation:

2a = - 2 + 4(a + 3) ← distribute parenthesis

2a = - 2 + 4a + 12 ( subtract 4a from both sides )

- 2a = 10 ( divide both sides by - 2 )

a = - 5

-------------------------------------------

- 4b = - 5(3 - b) + 6 ← distribute parenthesis

- 4b = - 15 + 5b + 6 ( subtract 5b from both sides )

- 9b = - 9 ( divide both sides by - 9 )

b = 1

User Jnewbery
by
8.3k points

Related questions

asked Sep 3, 2022 216k views
Sonia Casas asked Sep 3, 2022
by Sonia Casas
7.9k points
1 answer
4 votes
216k views
1 answer
1 vote
198k views
2 answers
4 votes
65.9k views