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Ayudita please (Es de 1 de ESO)?

Ayudita please (Es de 1 de ESO).

Mejor respuesta

Korquis
7

Ecuaciones 1

a) x + 1 = 6 despejamos x, x = 6 - 1, x = 5

b) x + 8 = 3, x = 3 - 8, x = - 5

c) 7 = x + 3, x = 7 - 3, x = 4

d) 5 = 11 + x, x = 5 - 11, x = - 6

e) x + 1 = - 2, x = - 2 - 1, x = - 3

f) x + 5 = - 2, x = - 2 - 5, x = - 7

g) 5 + x = 7, x = 7 - 5, x = 2

h) 4 + x = 4, x = 4 - 4, x = 0

i) 8 + x = 1, x = 1 - 8, x = - 7

Ecuaciones 2

a) x - 2 = 4, x = 4 - 2, x = 2

b) x - 6 = 7, x = 7 + 6, x = 13

c) 2 = x - 2, x = 2 + 2, x = 4

d) 5 = x - 1, x = 5 + 1, x = 6

e) x - 4 = - 1, x = - 1 + 4, x = 3

f) x - 5 = - 3, x = - 3 + 5, x = 2

g) - 4 = x - 2, x = - 4 + 2, x = - 2

h) - 8 = x - 1, x = - 8 + 1, x = - 7

i) 4 - x = 1, x = 4 - 1, x = 3

j) 5 - x = 6, x = 5 - 6, x = - 1

k) 8 = 13 - x, x = 13 - 8, x = 5

l) 15 = 6 - x, x = 6 - 15, x = - 9

Ecuaciones 3

a) 4x = 12, x = 12 / 4, x = 3

b) 4x = 20, x = 20 / 4, x = 5

c) - 2x = 10, x = 10 / - 2, x = - 5

d) - 15 = 5x, x = - 15 / 5, x = - 3

e) 5x = 3, x = 3 / 5, x = 0, 6

f) 4 = 6x, x = 4 / 6, x = 0, 66

g) x + 2x = 9, 3x = 9, x = 9 / 3, x = 3

h) 4x + 5x = 18, 9x = 18, x = 18 / 9, x = 2

i) 21 = 5x + 2x, 21 = 7x, x = 21 / 7, x = 3.

Otras 1 respuestas

Respuesta 2

TubebeNico
3

Explicación paso a paso : ●a) x - 2 = 4 f) x + 5 = - 2 x = 6 x = - 7b) x + 8 = 3 g) 5 + x = 7 x = - 5 x = 2c) 7 = x + 3 h) 4 + x = 4 - 4 = x x = 0 d) 5 = 11 + x i) 8 + x = 1 - 6 = x x = - 7e) x + 1 = - 2 x = - 3●a) x - 2 = 4 f) 2 x = 6 b) x - 6 = 1 g) 2 x = 7 c) x = - 4 h) 7 d) - 6 i) 5 e) 3 j) 11● a) 3 b) 5 c) - 5x d) - 3 e) 3 / 5 f)6 / 4 g) 3x h)18 / 11 i)3 = x.