c)x+6=5
g)10=x+8
k)x-1=5
0)3x=-9
s)7x-33=-12
w)4x=-12
d)x-7=-7
h)15=x+20
1)2x+4=16
p)2x-2=12-5x
t)33+ x=5-3x
x)35x=-105
valendo muitos pontos!!!!
Respostas
Resposta:
C)
x+6=5
x = 5 -6
x = -1
..
g)10=x+8
10 -8 = x
2 = x
...
k)x-1=5
x = 5 +1
x = 6
...
0)3x=-9
x = -9/3
x = -3
...
s)7x-33=-12
7x = -12 + 33
x = 21/7
x = 3
...
w)4x=-12
x = -12/4
x = -3
...
d)x-7=-7
x = -7 +7
x = 0
...
h)15=x+20
x +20 = 15
x = 15 -20
x = -5
...
1)2x+4=16
2x = 16 -4
2x = 12
x = 12/2
x = 6
...
p)2x-2=12-5x
2x +5x = 12 +2
7x = 14
x = 14/7
x = 2
...
t)33+ x=5-3x
x +3x = 5 -33
4x = -28
x = -28/4
x = -7
...
x)35x=-105
x = -105/35
x = -3
Explicação passo-a-passo:
Explicação passo-a-passo:
c)x + 6 = 5
x= 6-5
x = 1
g)10=x + 8
x= 10 - 8
x= 2
k)x-1=5
x=5+1
x= 6
o)3x=-9
x=-9÷3
x=-3
s)7x-33=-12
7x= -12 + 33
7x=21
x= 21 ÷ 7
x= 3
w)4x= 12
x= 12÷4
x= 3
d)x-7=-7
x= -7 ÷ -7
x= 1
h) 15 = x + 20
x= 15 - 20
x= -5
1) 2x + 4 = 16
2x= 16 + 4
2x= 20
x= 20 ÷ 2
x= 10
p)2x - 2 = 12- 5x
2x+5x= 12 + 2
7x= 14
x= 14÷7
x= 2
t)33+x = 5-3x
x+3x = 5 - 33
4x = - 28
x= - 28 ÷ 4
x=-7
x)35x = -105
x= -105 ÷ 35
x=-3