Question

2(6x + 9 - 3x) - 5x + 21 how many solutions are there​

Answer 1

Only one solution.

Explanation:

1) Collect like terms.

`2((6x-3x)+9)-5x+21`

2) Simplify
`(6x-3x)+9` to
`3x+9`.

`2(3x+9)-5x+21`

3) Expand by distributing terms.

`6x+18-5x+21`

4) Collect like terms.

`(6x-5x) +(18+21)`

5) Simplify.

`x+39`

Therefore, the answer is x + 39 and there is only one solution possible.