Question

2 left-bracket (12 + 2 x) + (15 + 2 x) right-bracket = 74
Help me

Answer 1

Answer:
`x=(5)/(2)`

Explanation:

Do you mean
`2[(12+2x)+(15+2x)]=74`? In that case just finish things inside the bracket first then multiply 2 inside.

`2(12+2x+15+2x)=74`

`2(27+4x)=74`

Then multiply 2 inside the bracket.

`54+8x=74`

Move 54 to other side then we get,

`8x=74-54`

`8x=20`

`x=(20)/(8)`

`x=(5)/(2)`

(Note: If this is not what you mean then please let me know.)