a) 6x = 2x +16
b) 2x - 5=x + 1
c) 2x + 3 = X + 4
d) 5x + 7= 4× + 10
e) 4× - 10 =2 × + 2
f) 8× - 8 = 4× + 4
G) 2× + 1 = 4 x -7
Respostas
___________
a)
6x = 2x + 16
4x = 16
x = 16/4
x = 4
R) 4
_
b)
2x - 5 = x + 1
2x - x = 5 + 1
x = 6
R) 6
_
c)
2x + 3 = x + 4
2x - x = 4 - 3
x = 1
R) 1
_
d)
5x + 7 = 4x + 10
5x - 4x = 10 - 7
x = 3
R) 3
_
e)
4x - 10 = 2x + 2
4x - 2x = 10 + 2
2x = 12
x = 6
R) 6
_
f)
8x - 8 = 4x + 4
8x - 4x = 8 + 4
4x = 12
x = 3
R) 3
_
g)
2x + 1 = 4x - 7
4x - 2x = 7 + 1
2x = 8
x = 4
R) 4
____________
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Resposta:
Explicação passo a passo:
A) 6x = 2x +16
6x - 2x = 16
4x = 16
x = 16/4
x = 4
_______________
b) 2x - 5 = x + 1
2x - x = 1+5
x = 6
________________
c) 2x + 3 = X + 4
2x - x = 4 - 3
x = 1
_______________
d) 5x + 7= 4× + 10
5x - 4x = 10 - 7
x = 3
________________
e) 4× - 10 =2 × + 2
4x - 2x = 2+10
2x = 12
x = 12/2
x = 6
_______________
f) 8× - 8 = 4× + 4
8x - 4x = 4 + 8
4x = 12
x = 12/4
x = 3
______________
G) 2× + 1 = 4 x -7
1+7 = 4x - 2x
8 = 2x
2x = 8
x = 8/2
x = 4