Ecuaciones Ayúdenme por favor?

Haré 10 para que que hagas los demás

a)x + 4 = 5 x = 5 - 4.

X = 1

b)x - 3 = 6 x = 6 + 3.

X = 9

c)7 + x = 10 x = 10 - 7.

X = 3

d)11 = x + 5 11 - 5 = x.

X = 6

e)2x + x = 5 3x = 5.

X = 5 / 3

e)7x - 3x = 10 - 7 4x = 3.

X = 3 / 4

f) x - 9x = 2 - 8x = 2.

X = - 2 / 8.

X = - 1 / 4

g) 2x + 4 + 5x = 18 7x + 4 = 18 7x = 18 - 4.

X = 14 / 7.

X = 2

h) 9 = 12x - 6 - 7x

9 + 6 = 12x - 7x 15 = 5x.

X = 15 / 5.

X = 3

i) x + 7 = 12x - 3 - 8x + 1

7 + 3 - 1 = 12x - 8x - x

10 - 1 = 4x - x 9 = 3x.

X = 9 / 3.

X = 3.