Question

Identity 16. Solve for the variable: 3n – 5 = 7n + 11
17. Solve for the variable: -6a + 3 = -3(2a – 1)
18. What is the solution of -(-5 – 6x) = 4(5x + 3)?
A. -2
B. -1/2
C. ½
d. 2

Answer 1

i got this

Answer 2

you can add 5 to both sides

3n-5 = 7n+11

Subtract 7n from both sides

3n = 7n+16
-7n

divide both sides by four
Try to attempt the second one on your own and post what you got.


-4n = 16
-4 -4

n = -4

CHECK

3n = 7n+16

3(-4) = -12

7(-4) = -28+16 = -12

-12 = -12

that's how we know this answer is correct. so n = -4

Answer 3

thanks

Answer 4

wow im slow

Answer 5

only need 17 and 18