Equations / Ecuaciones

1 step / 1 paso

100

10x = 50

x = 5

200

-30x = 180

x = -6

300

x/3 = 9

x = 27

400

-12x = -252

x = 21

500

-6.5x = 53.625

x = -8.25

2 steps + / 2 pasos +

100

2x + 5 = 13

x = 4

200

8x + 10 = 98

x = 11

300

0.5x + 2 = 8

x = 12

400

2(x+6) = 20

x = 4

500

4x / 5 = 8

x = 10

2 steps - / 2 pasos -

100

2x - 5 = 7

x = 6

200

8x - 4 = 20 

x = 3

300

3x - 20 = 28

x = 16

400

-2(x - 5) = -40

x = 25

500

x/3 - 5 = -1

x = 12

x on both sides / x en ambos lados

100

4x + 3 = 5x

x = 3

200

2x + 10 = 4x

x = 5

300

5x + 10 = 3x + 24

x = 7

400

x/4 + 6 = 2x - 29

x = 20

500

2(x + 12) = 5x

x = 8

???

100

-3*-4 = ?

-3*-4 = 12

200

2 + 5*6 = ?

2 + 5*6 = 32

300

-5*-7 + 100 - 200 = ?

-5*-7 + 100 - 200 = -65

400

-15 + 10 + 5 - 20 + 25 - 5 = ?

-15 + 10 + 5 - 20 + 25 - 5 = 0

500

How many seconds are in 2 days? / ¿Cuantos segundos hay en 2 días?

60*60*24*2 = 172,800