Problemas de ecuaciones de primer grado
Enviado por noe546 • 9 de Septiembre de 2022 • Tarea • 1.161 Palabras (5 Páginas) • 129 Visitas
Problemas de ecuaciones de primer grado
- + 4X – 5= 0 [pic 1]
+ 5X – X -5 =0[pic 2]
X (X + 5) – ( X+ 5)= 0
(X +5) x (X – 1)= 0
X + 5 =0
X+ 1=0
X= -5
X=1
- 1 – 3 x < 2X +5
-3 X – 2X <5 -1
-5 x <4
x> - [pic 3]
- 7 (4X – 3) < 1+ 3 (8x -7)
28X- 21 <1 +24x -21
28X – 24 X < 1
4X < 1
X < [pic 4]
- 3 x ( X – 5) >3 – 2X + 13 [pic 5]
3 – 15 X > - 3 – 2X + 13[pic 6][pic 7]
-15 X > -2 X + 13
-15X + 2X > 13
-13 x >13
X< -1
- (x -1 – 4 ≤ x ( + 3X )[pic 8][pic 9]
- 3 + 3X – 1 -4 ≤ + 3 [pic 10][pic 11][pic 12][pic 13]
-3 +3X – 1- 4 ≤ [pic 14][pic 15]
-3 + 3X – 5 -3 ≤ 0[pic 16][pic 17]
-6 + 3X -5 ≤ = 0[pic 18]
X € R
- 5( X+ 3) +2X( 3X -2)≤ ( 6x -1) (X + 1)
5X + 15 + 6 -4 = 6 + 6X – X -1[pic 19][pic 20]
5X + 15 – 4X = 6X – X – 1
X + 15 = 5X – 1
X – 5X = 1 – 15
-4X = -16
X = 4
- 3 ( X + 1) – 7 ≤ [pic 21]
3X+ 3 - 7 ≤ [pic 22]
3X – 4 ≤ [pic 23]
6X – 8 ≤ X
6X – X ≤ 8
5X ≤ 8
X ≤ [pic 24]
- – 7X + 10 < 0 [pic 25]
– 2X - 5X + 10 < 0[pic 26]
X × (X -2) – 5 X – 2) < 0
[pic 27]
[pic 28][pic 29]
X € ( 2, 5)
- 3 – 2X – 8 ≥ 0[pic 30]
3 + 4X – 6X – 8 ≥ 0[pic 31]
X × (3X + 4) – 2 (3X + 4) ≥ 0
(3X + 4) x (X – 2) ≥ 0
X€ [2, ∞)
X€ [ -∞, - )[pic 32]
X€ [ -∞ - ) u [2, + ∞)[pic 33]
- 2X + 5 < + 2[pic 34]
2X + 5 – – 2 < 0[pic 35]
2X + 3 – < 0[pic 36]
- + 2X + 3 < 0[pic 37]
(X – 3) x (X + 1) < 0
(X – 3) x (X +1) >0
X€ ( 3, + ∞)
X€ (-∞, -1)
X€ ( -∞, -1) u (3 + ∞)
K) 8x + 7 – 2x + 5 = 4x + 12 – (x – 30)
8x + 7 – 2x + 5 = 4x + 12 – x + 30
8x – 2x – 4x + x = –7 – 5 + 12 + 30
3x = 30
x = 10
L) 6 – x = 4 · (x – 3) – 7 · (x – 4)
6 – X = 4x – 12 – 7x + 28
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