Resolva as equações:
a) 20x-4=5x
b) 4x=-8x+36
c) 6x-4=2x+8
d) 4x-10=2x+2
Soluções para a tarefa
Respondido por
33
A)20x-4=5x
20x-5x-4=0
20x-5x=4
15x=4
x=4/15
B)4x=-8x+36
4×+8x=36
12x=36
x=36/12
x=3
C)6x-4=2x+8
6x-2x=8-4
4x=4
x=4/4
x=1
D)4x-10=2x+2
4x-2x=2+10
2x=12
x=12/2
x=6
20x-5x-4=0
20x-5x=4
15x=4
x=4/15
B)4x=-8x+36
4×+8x=36
12x=36
x=36/12
x=3
C)6x-4=2x+8
6x-2x=8-4
4x=4
x=4/4
x=1
D)4x-10=2x+2
4x-2x=2+10
2x=12
x=12/2
x=6
Respondido por
10
Olá! :)
A) 20 x - 4 = 5 x
20 x - 5 x - 4 = 0
20 x - 5 x = 4
15 x = 4
x = 4 / 15
B) 4 x = - 8 x + 36
4 × + 8 x = 36
12 x = 36
x = 36 / 12
x = 3
C) 6 x - 4 = 2 x + 8
6 x - 2 x = 8 - 4
4 x = 4
x = 4 / 4
x = 1
D) 4 x - 10 = 2 x + 2
4 x - 2 x = 2 + 10
2 x = 12
x = 12 / 2
x = 6
Abraços! :)
A) 20 x - 4 = 5 x
20 x - 5 x - 4 = 0
20 x - 5 x = 4
15 x = 4
x = 4 / 15
B) 4 x = - 8 x + 36
4 × + 8 x = 36
12 x = 36
x = 36 / 12
x = 3
C) 6 x - 4 = 2 x + 8
6 x - 2 x = 8 - 4
4 x = 4
x = 4 / 4
x = 1
D) 4 x - 10 = 2 x + 2
4 x - 2 x = 2 + 10
2 x = 12
x = 12 / 2
x = 6
Abraços! :)
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