Question

3x - [3+ {x- (3+x)}] = 5 + 2x

Answer 1

x = 5.

Explanation:

3x - [3+ {x- (3+x)}] = 5 + 2x

We simplify the parentheses, working from the inner parentheses 'outwards'.

3x - [3+ {x- (3+x)}] = 5 + 2x

3x - [3 + {x - 3 - x} ] = 5 + 2x

3x - [ 3 + x - 3 - x ] = 5 + 2x

3x - 0 = 5 + 2x

3x - 2x = 5

x = 5 (answer).

Answer 2

3x - [3+{x-3-x}] = 5 + 2x

3x - [3-3] = 5 + 2x

3x - 2x = 5

x = 5