Question

resuelve las siguientes ecuaciones y redondea la solucion a 3 decimales
6x+11=25
3(x-5)=17
c)3x-10+0.2+7=18
7.4x+18=54
3.2(x+6)=-15
1.8x+13-5.6x=-7

Answer 1

Respuesta:

6x + 11 = 25

6x = 25 – 11

6x = 14

x = 14 ÷ 6

x = 2.333

3 (x – 5) = 17

3x – 15 = 17

3x = 17 + 15

3x = 32

x = 32 ÷ 3

x = 10.666

3x – 10 + 0.2 + 7 = 18

3x = 18 + 10 – 0.2 – 7

3x = 20.8

x = 20.8 ÷ 3

x = 6.933

7.4x + 18 = 54

7.4x = 54 – 18

7.4x = 36

x = 36 ÷ 7.4

x = 4.864

3.2 (x + 6) = – 15

3.2x + 19.2 = – 15

3.2x = – 15 – 19.2

3.2x = – 34.2

x = – 34.2 ÷ 3.2

x = – 10.687

1.8x + 13 – 5.6x = – 7

– 3.8x = – 7 – 13

– 3.8x = – 20

x = – 20 ÷ 3.8

x = – 5.263

Answer 2

Respuesta:

6x=25-11

6x=14

x=14/6

x=7/3

x=2.333

3x-15=17

3x=17+15

3x=32

x=32/3

x=10.666

3x=18+10-0.2-7

3x=20.8

x=20.8/3

x=6.933

4x=54-18

4x=36

x=36/4

x=9

3.2x+19.2= -15

3.2x= -15-19.2

3.2x= -34.2

x= -34.2/3.2

x= -10.687

1.8x-5.6x= -7-13

-3.8x= -20

x=5.263

Explicación paso a paso: