Question

1) 4x+2=7
--------
6

2) x+3=8
-----
2

3)3(x-8)=21
--------
5
4)x. x
-- + --=20
2. 3

5)2x - x=9
---- ----
5. 4

ayuda porfa les doy 20 puntos

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Answer 1

Respuesta:

1 = 10

2 = 13

3 = 43

4 = 24

5 = 60

Explicación paso a paso:

1) 4x+2=7

6

4x = (7 • 6) - 2

x = 40 = 10

4

2) x+3=8

2

x = (8 • 2) - 3

× = 13

3) 3(x-8) = 21

5

3x - 24 = 21 • 5

3x = 105 + 24

x = 129 = 43

3

4) x + x = 20

2 3

3x + 2x = 20

6

3x + 2x = 20 • 6

5x = 120

x = 120 = 24

5

5) 2x - x = 9

5 4

8x - 5x = 9

20

8x - 5x = 9 • 20

3x = 180

x = 180 = 60

3