Respuestas
Respuesta dada por:
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a) 4x+3+2.(x-1)=3x+22
4x + 3 + 2x - 2 = 3x + 22
4x + 2x - 3x = 22 + 2 - 3
3x = 21
x = 21/3
x = 7
b) 7.(3+2x)-17-10x=29-1
21 + 14x - 17 - 10x = 28
14x - 10x = 28 + 17 - 21
4x = 24
x = 24/4
x = 6
c) 5(x+3)-11=2x+19.
5x + 15 - 11 = 2x + 19
5x - 2x = 19 - 15 + 11
3x = 15
x = 15/3
x = 5
d) 4x+1+2.(5+x)=x+71.
4x + 1 + 10 + 2x = x + 71
4x + 2x - x = 71 - 11
5x = 60
x = 60/5
x = 12
e) 21+3.(2x-2)-2x= 6-x
21 + 6x - 6 - 2x = 6 - x
6x - 2x + x = 6 + 6 - 21
5x = -9
x = -9/5
4x + 3 + 2x - 2 = 3x + 22
4x + 2x - 3x = 22 + 2 - 3
3x = 21
x = 21/3
x = 7
b) 7.(3+2x)-17-10x=29-1
21 + 14x - 17 - 10x = 28
14x - 10x = 28 + 17 - 21
4x = 24
x = 24/4
x = 6
c) 5(x+3)-11=2x+19.
5x + 15 - 11 = 2x + 19
5x - 2x = 19 - 15 + 11
3x = 15
x = 15/3
x = 5
d) 4x+1+2.(5+x)=x+71.
4x + 1 + 10 + 2x = x + 71
4x + 2x - x = 71 - 11
5x = 60
x = 60/5
x = 12
e) 21+3.(2x-2)-2x= 6-x
21 + 6x - 6 - 2x = 6 - x
6x - 2x + x = 6 + 6 - 21
5x = -9
x = -9/5
mariaemilia02:
a) 4x+3+2.(x-1)=3x+22. b) 7.(3+2x)-17-10x=29-1 c) 5(x+3)-11=2x+19. d) 4x+1+2.(5+x)=x+71. e) 21+3.(2x-2)-2x=6-x
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