Question

respuesta de
2x - 1 = x + 3
3(x + 5) = x + 7
4(x + 2) = 2(x - 1)
4(3a - 1) = 5(4a - 1) -4 (3a - 2)

Answer 1

Respuesta:

Explicación paso a paso:

2x - 1 = x + 3

2x - x = 1 + 3

x = 4

3(x + 5) = x + 7

3x + 15 = x + 7

3x - x = - 15 + 7

2x = -8

x= -4

4(x + 2) = 2(x - 1)

4x + 8 = 2x - 2

2x = -10

x = -5

4(3a - 1) = 5(4a - 1) -4 (3a - 2)

12a - 4 = 20a - 5 - 12a + 8

12a - 4 = 8a + 3

4a = 7

a = 7/4