eu tenho duvidas em uma licao de matematica ; determine a raiz de cada equacao .... e eles sao assim ;2x+5=25 , 13x+6-2x=28 , 5+6x=5x+2, y+2y-1-3=y , 3x-6=-4x+3 deverao aparecer os calculos
Soluções para a tarefa
Respondido por
1
2x=25-5
2x=20
x=20\2
x=10
13x-2x=28-6
11x=22
x=22\11
x=2
6x-5x=2-5
x=-3
3x+4x=9
7x=9
x=9\7
2x=20
x=20\2
x=10
13x-2x=28-6
11x=22
x=22\11
x=2
6x-5x=2-5
x=-3
3x+4x=9
7x=9
x=9\7
anyketilleen:
obrigada :)
Respondido por
0
a)
2x + 5 = 25
2x = 25 - 5
2x = 20
x = 20/2
x = 10
**************************
b)
13x + 6 - 2x = 28
11x + 6 = 28
11x = 28 - 6
11x = 22
x = 22/11
x = 2
***************************
c)
5 + 6x= 5x + 2
6x - 5x = 2 - 5
x = - 3
***************************
d)
y + 2y - 1 - 3 = y
3y - 4 = y
3y - y = 4
2y = 4
y = 4/2
y = 2
**************************
e)
3x - 6 = - 4x + 3
3x + 4x = 3 + 6
7x = 9
x = 9/7
*******************************************
2x + 5 = 25
2x = 25 - 5
2x = 20
x = 20/2
x = 10
**************************
b)
13x + 6 - 2x = 28
11x + 6 = 28
11x = 28 - 6
11x = 22
x = 22/11
x = 2
***************************
c)
5 + 6x= 5x + 2
6x - 5x = 2 - 5
x = - 3
***************************
d)
y + 2y - 1 - 3 = y
3y - 4 = y
3y - y = 4
2y = 4
y = 4/2
y = 2
**************************
e)
3x - 6 = - 4x + 3
3x + 4x = 3 + 6
7x = 9
x = 9/7
*******************************************
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