gente me ajuda com essas equação pf
a)2x+1=3 b)5x=25 c)-3x+3=-6 d)4x=16 e)-10x=100 f) x+4=8 g)-3x-1=-4 h)-4x+8=16
i)5x-6=19
j)-6x=36 k)7x+1= -48 l)9x+1=82 m)5x+7=-8 n)2x-4=22 o)16x=336 p)-8x+4=-60
q)x+5=7 r)3x+1=5
gente pf me ajuda
Soluções para a tarefa
a)2x+1=3
2x+1=3
2x=3-1
2x=2
x=2/2
x=1
b)5x=25
5x=25
x=25/5
x=5
c)-3x+3=-6
-3x+3=-6
-3x=-6-3
-3x=-9
x=-9/-3
x=3
d)4x=16
4x=16
x=16/4
x=4
e)-10x=100
-10x=100
x=100/-10
x=-10
f) x+4=8
x+4=8
x=8-4
x=4
g)-3x-1=-4
-3x-1=-4
-3x=-4+1
-3x=-3
x=-3/-3
x=1
h)-4x+8=16
-4x+8=16
-4x=16-8
-4x=8
x=8/-4
x=-2
i)5x-6=19
5x-6=19
5x=19+6
5x=25
x=25/5
x=5
j)-6x=36
-6x=36
x=36/-6
x=-6
k)7x+1= -48
7x+1=-48
7x=-48-1
7x=-49
x=-49/7
x=-7
l)9x+1=82
9x+1=82
9x=82-1
9x=81
x=81/9
x=9
m)5x+7=-8
5x+7=-8
5x=-8-7
5x=-15
x=-15/5
x=-3
n)2x-4=22
2x-4=22
2x=22+4
2x=26
x=26/2
x=13
o)16x=336
16x=336
x=336/16
x=21
p)-8x+4=-60
-8x+4=-60
-8x=-60-4
-8x=-64
x=-64/-8
x=8
q)x+5=7
x+5=7
x=7-5
x=2
r)3x+1=5
3x+1=5
3x=5-1
3x=4
x=4/3
Espero ter ajudado!
Resposta:
A)
2x + 1 = 3
2x = 3 - 1
2x = 2
x = 2/2
x = 1
B)
5x = 25
x = 25/5
x = 5
C)
- 3x + 3 = - 6
- 3x = - 6 - 3
- 3x = - 9
x = - 9/-3
x = 9/3
x = 3
D)
4x = 16
x = 16/4
x = 4
E)
- 10x = 100
x = 100/-10
x = - 100/10
x = - 10
F)
x + 4 = 8
x = 8 - 4
x = 4
G)
- 3x - 1 = - 4
- 3x = - 4 + 1
- 3x = - 3
x = - 3/-3
x = 3/3
x = 1
H)
- 4x + 8 = 16
- 4x = 16 - 8
- 4x = 8
x = 8/-4
x = - 8/4
x = - 2
I)
5x - 6 = 9
5x = 9 + 6
5x = 15
x = 15/5
x = 3
J)
- 6x = 36
x = 36/-6
x - 36/6
x = - 6
K)
7x + 1 = - 48
7x = - 48 - 1
7x = - 49
x = - 49/7
x = - 7
L)
9x + 1 = 82
9x = 82 - 1
9x = 81
x = 81/9
x = 9
M)
5x + 7 = - 8
5x = - 8 - 7
5x = - 15
x = - 15/5
x = - 3
N)
2x - 4 = 22
2x = 22 + 4
2x = 26
x = 26/2
x = 13
O)
16x = 336
x = 336/16
x = 21
P)
- 8x + 4 = - 60
- 8x = - 60 - 4
- 8x = - 64
x = - 64/-8
x = 64/8
x = 8
Q)
x + 5 = 7
x = 7 - 5
x = 2
R)
3x + 1 = 5
3x = 5 - 1
3x = 4
x = 4/3