Question

a)(100 – 75x) : (- 25) = 4x

b) 2. (4x + 1) = (6 – x). (- 3)

c) – 4x + 5 +3x = 4 + 6x – 20





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Answer 1

Respuesta:

Explicación paso a paso:

A)

(100 – 75x) : (- 25) = 4x

(100 : -25) - (75x : -25) = 4x

- 4 + 3x = 4x

- 4 = 4x - 3x

- 4 = x

b)

2. (4x + 1) = (6 – x). (- 3)

(2 * 4x) + (2* 1) = (6)(-3) - (x)(-3)

8x + 2 = -18 + 3x

8x - 3x = -18 - 2

5x = -20

x = -20/5

x = -4

c)

– 4x + 5 +3x = 4 + 6x – 20

– 1x + 5 = 6x – 16

5 + 16 = 6x + x

21 = 7x

21/7 = x

3 = x