Question

a) 2x + 5 =9

b) 3x + 1 = 5

c) 7x + 5 = 2x + 20

d) 3x - 8 = x + 2

e) 1.5x + 2.3 = 0.25x + 2​

Answer 1

Explicación paso a paso:

a) 2x + 5 = 9

2x = 4

x = 2

b) 3x + 1 = 5

3x = 4

x = 4/3

c) 7x + 5 = 2x + 20

5x = 15

x = 3

d) 3x - 8 = x + 2

2x = 10

x = 5

e) 1 . 5x + 2 . 3 = 0 . 25x + 2

5x + 6 = 2

5x = - 4

x = -4/5