Question

Resolva isso por favor ´´ Equações do 1 grau ´´

a] X - 11 = 0
b] 4 x = - 8
c] X - 2 = - 1
d] 6 X = 6
e] 4 X = 3 X + 9
f] 3 X = 7
g] 5 X + 1 = 16
h] 10 X - 2 = 7 X
i] 6 X + 5 = 6
j] 8 X + 4 = 0

a]7 X + 1 - 5 X = 9
b] y + 9 y + 5 = - 15
c] 17 X - 1 = 15 X + 3
d] 16 - X = X + 25
e] 20 X - 13 = 20 + 9 x
f] 21 X + 1 = 11 X + 5
g] 9 X - 23 = 13 X - 27
h] 0,3 + 2 X = X +3,5

a] X - 10 = 3,U =Q
b] X - 6 = -10,U = Q
c] 2 X = - 16, U = Z
d]4 X= - 40, U = Q
e]8 X = - 8, U = Q
f] 8 X = - 8, U = Q

a] 5 é raiz da equação 7 X - 6 = 5 x + 4

Answer 1

a)
x - 11 = 0
x = 0 + 11
x = 11

b)
4x = -8
x = -8/4
x = -2

c)
x - 2 = -1
x = -1 + 2
x= 1

d)
6x = 6
x = 6/6
x= 1

e)
4x = 3x + 9
4x - 3x = 9
1x = 9
x = 9

f)
3x = 7
x = 7/3

g)
5x + 1 =16
5x = 16 - 1
5x = 15
x = 15/5
x = 3

h)
10x - 2 = 7x
10x - 7x =2
3x =2
x = 2/3

i)
6x + 5 = 6
6x = 6 - 5 
6x = 1
x = 1/6

j)
8x + 4 = 0
8x = 4
x = 4/8
x = 1/2

------------------
a) 7x - 5x = 9 - 1
2x =8
x= 8/2
x= 4

b) 10y = - 15 - 5
10y = - 20
y = -20/10
y = -2

c) 17x - 15x = + 3 + 1
2x = 4
x = 4/2
x = 2

d) - x - x = + 25 - 16
- 2 x = 9 (-1)
2x = -9
x = -9/2

e) 20x - 9x = 20 + 13
11x = 33
x = 33/11
x = 3

f) 21x - 11x = 5 - 1
10x = 4
x = 4/10
x = 2/5

g) 9x - 13x = - 27 + 23
-4x = -4 (-1)
4x = 4
x = 4/4
x = 1

h) 2x - x = 3,5 - 0,3
1x = 3,2
x = 3,2