Question

Resuelva las siguientes ecuaciones
1. 8(x+2)=1+3x
2.-2(3x+2)=5(x-4)
3. 2x+3=4x
4. 2(2x+1)=30
5. 20=4(x+2)
ES UREGENTE PLIS ​

Answer 1

1). 8 (x + 2) = 1 + 3x

8x + 16 = 1+ 3x

8x - 3x = 1 - 16

5x = - 15

x = - 3

2). - 2 (3x + 2) = 5 (x - 4)

- 6x - 4 = 5x - 20

- 6x - 5x = - 20 + 4

- 11x = - 16

x = 16/11

3). 2x + 3 = 4x

2x - 4x = - 3

- 2x = - 3

x = 3/2

4). 2 (2x + 1) = 30

2x + 1 = 15

2x = 15 - 1

2x = 14

x = 7

5). 20 = 4 (x + 2)

5 = x + 2

- x = 2 - 5

- x = - 3

x = 3