solve 3 -3(4-2a) = -5a - 2(4 + a)?

Answer 1

3 -3(4-2a) = -5a - 2(4 + a)

3 - 12 + 6a = -5a -8 -2a

-9 + 6a = -7a - 8

7a + 6a = 9 -8

13a = 1

a = 1/13

Answer 2

3 - 3(4 - 2a) = - 5a - 2(4 + a)
3 - 12 + 6a = - 5a - 8 - 2a
13a = 1
a = 1/13

Answer: a = 1/13

Proof:
3 - 3(4 - 2[1/13]) = - 5(1/13) - 2(4 + 1/13)
3 - 3(4 - 2/13) = - 5/13 - 2(4 1/13)
3 - 3(3 11/13) = - 5/13 - 106/13
39/13 - 150/13 = - 111/13
111/13 = 111/13

Answer 3

3 - 3(4-2a) = -5a - 2(4 + a)
3 - 12 + 6a = -5a - 8 - 2a
13a = 1
a = 1/13

Answer 4

1) 3 - 3 (4 - 2a) = - 5a - 2 (4 + a)

Always start with the grouping symbols:

2) 3 - 12 + 6a = - 5a - 8 - 2a

Combine like terms:

3) - 9 + 6a = -7a - 8

Add 9 to both sides so you are left with only one variable on the left side of the equation:

4) - 9 + 9 + 6a = - 7a - 8 + 9


Combine like terms:

5) 6a = - 7a + 1

Add 7a to both sides:

6) 6a + 7a = -7a + 7a + 1

Combine like terms:

7) 13a = 1

Divide by 13 on both sides.

8) 13a/13 = 1/13

Cancel out the 13s on the left side:

9) a = 1/13

Therefore, a = 1/13.

Answer 5

3 - 12 + 6 a = - 5 a - 8 - 2 a
13 a = 1
a = 1 / 13