Question

1. x + 5 – (2x - 1) – [x – 2 – (3x –( 2x – 4))]
2. 4 — х — (— х — [х — (х —( 1 — х))]}
3. 6 – a - {2a + [3a – (4a – (a – b)) – a] + a}

Answer 1

Explicación paso a paso:

1) x + 5 – (2x - 1) – [x – 2 – (3x –( 2x – 4))]

x +5 - 2x+1 -[x-2-3x-2x+4]

-x +6 - x +2 +3x+2x-4

3x+4

3x+4=0

x= -4/3

2) 4 — х — (— х — [х — (х —( 1 — х))]}

4-x -(-x -x-x-1 +1)

4- x +x +x+x+1-1

2x +4=0

x = -4/2

x= -2

3)6 – a - {2a + [3a – (4a – (a – b)) – a] + a}

6 – a - {2a + [3a – (4a – a +b) – a] + a

6– a - {2a + [3a – 4a +a -b– a] + a}

6– a - {2a + 3a – 4a +a -b– a+ a}

6– a - 2a -3a + 4a -a +b+ a-a

6– 3a+b