Question

15 = 3A + 3 (4+ A)
A=?
​

Answer 1

Answer:

A=1/2

Step-by-step explanation:

First, lets open the bracket.

We get

15= 3A + 3 (4+A)

15= 3A + 12 + 3A

Transposing 12 on the other side,

15-12 = 3A+3A

3=6A

Dividing both sides by 6,

3/6= 6A/6

1/2=A

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Answer 2

Answer:

A= ½

Step-by-step explanation:

3A + 3 (4+ A)

3×½+ 3×4+3×½

=1.5 +12+1.5

=12+3

= 15