Resuelve ecuaciones
A) x + 16 = 41
B) 9X - 45 + 4x - 16 = 4
C) 3 . ( x - 2) + 9= 0
D) 8x + 7 -2x + 5 = 4x + 12 - (x - 30)
E) x + ( x + 2 ) = 36
F) 2 . ( 3x -2) - ( x + 3 ) = 8
G) 2 . ( 13 + x) = 41 + x
H) ( x - 2 )°2 = x°2
erickdiaz911:
que significa ese circulo en la letra H?
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A) x + 16 = 41
x = 41 - 16
x = 25
B) 9X - 45 + 4x - 16 = 4
9x+4x-45-16=4
13x - 61=4
13x = 4 + 61
13x = 65
x = 5
C) 3 . ( x - 2) + 9= 0
3x - 6 +9 = 0
3x + 3 = 0
3x = -3
x = -1
D ) 8x + 7 -2x + 5 = 4x + 12 - (x - 30)
8x - 2x + 7 + 5 = 4x + 12 - x + 30
6x + 12 = 4x - x +12 +30
6x + 12 = 3x + 42
6x - 3x = 42 - 12
3x = 30
x = 10
E) x + ( x + 2 ) = 36
x + x + 2 = 36
2x = 36 - 2
2x = 34
x = 17
F) 2 . ( 3x -2) - ( x + 3 ) = 8
2( 3x -2) - ( x + 3 ) = 8
6x - 4 - x - 3 =8
6x - x -4 -3 = 8
5x - 7 = 8
5x = 15
x = 3
G) 2 . ( 13 + x) = 41 + x
2( 13 + x) = 41 + x
36 + 2x = 41 + x
2x - x = 41 - 36
x = 5
H) ( x - 2 )°2 = x°2
x^2 - 2(x)(2) + 2^2 = x^2
x^2 - 4x + 4 = x^2
-4x + 4 = x^2 - x^2
-4x + 4 = 0
4 = 4x
1 = x
x = 41 - 16
x = 25
B) 9X - 45 + 4x - 16 = 4
9x+4x-45-16=4
13x - 61=4
13x = 4 + 61
13x = 65
x = 5
C) 3 . ( x - 2) + 9= 0
3x - 6 +9 = 0
3x + 3 = 0
3x = -3
x = -1
D ) 8x + 7 -2x + 5 = 4x + 12 - (x - 30)
8x - 2x + 7 + 5 = 4x + 12 - x + 30
6x + 12 = 4x - x +12 +30
6x + 12 = 3x + 42
6x - 3x = 42 - 12
3x = 30
x = 10
E) x + ( x + 2 ) = 36
x + x + 2 = 36
2x = 36 - 2
2x = 34
x = 17
F) 2 . ( 3x -2) - ( x + 3 ) = 8
2( 3x -2) - ( x + 3 ) = 8
6x - 4 - x - 3 =8
6x - x -4 -3 = 8
5x - 7 = 8
5x = 15
x = 3
G) 2 . ( 13 + x) = 41 + x
2( 13 + x) = 41 + x
36 + 2x = 41 + x
2x - x = 41 - 36
x = 5
H) ( x - 2 )°2 = x°2
x^2 - 2(x)(2) + 2^2 = x^2
x^2 - 4x + 4 = x^2
-4x + 4 = x^2 - x^2
-4x + 4 = 0
4 = 4x
1 = x
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