Question

a_ 3x - 4 = x
b_ 4x + 7 = 3x + 23
c_ 7x - 20 = 2x + x
d_ 8x - 5 = 5x + 13
ayuda​

Answer 1

a. 3x - 4 = x

3x - x = 4

2x = 4

x = 4 ÷ 2

x = 2

b. 4x + 7 = 3x + 23

4x - 3x = 23 - 7

x = 16

c. 7x - 20 = 2x + x

7x - 2x - x = 20

4x = 20

x = 20 ÷ 4

x = 5

d. 8x - 5 = 5x + 13

8x - 5x = 13 + 5

3x = 18

x = 18 ÷ 3

x = 6

Answer 2

Respuesta:

A) x=2

B) x=16

C) x=5

D) x= 6

Explicación paso a paso:

A) 3x-4=x

3x-x=4

2x=4

X=4/2

X=2

B) 4x+7=3x+23

4x-3x=23-7

X=16

C) 7x - 20 = 2x + x

7x-2x-x=20

4x=20

x= 20/4

x=5

D) 8x - 5 = 5x + 13

8x-5x=13+5

3x=18

X=18/3

X= 6