ACTIVIDAD
Resolver las siguientes ecuaciones y probarlas:
1. 5x = 8x – 15
2. 4x + 1 = 2
3. y – 5 = 3y – 25
4. 5x + 6 = 10x + 5
5. 9y – 11 = – 10 + 12y
6. 21 – 6x = 27 – 8x
7. 11x + 5x – 1 = 65x – 36
8. 8x – 4 + 3x = 7x + x + 14
9. 8x + 9 – 12x = 4x – 13 – 5x
10. 5y + 6y – 81 = 7y + 102 + 65y
11. 16 + 7x – 5 + x = 11x – 3 – x
12. 3x + 101 – 4x – 33 = 108 –
16x – 100
13. 14 – 12x + 39x – 18x = 256 – 60x – 657x
14. 8x – 15x – 30x – 51x = 53x + 31x – 172
Respuestas a la pregunta
Respuesta:
1.
-3x+15=0
x=-(-15)/-3
x=- (3).(5)/(3).(-1)=5
2
4x-1=0
(4).x+(-1)=0
X=-(-1)/4 x=1/4
3
-2y+20=0
(-2).y+(20)=0
y=-(20)/-2
y=- (2).(10)/(2).(-1)=10
4
-5x+1=0
(-5).x+(1)=0
x=(-1)/-5 x=1/5
5
(9y-11)-(12y-10)=0
-3y-1=0
(-3).y+(-1)=0
y=-(-1)/-3 y=- 1/3
6
21-6x=27-8x
(-6x+21)-(-8x+27)=0
2x-6=0
(2).x+(-6)=0
x=-(-6)/2
x=- (2).(-3)/2=3
7
11x+5x-1=65x-36
(16x-1)-(-65x-36)=0
-49x+35=0
(-49).x+(35)=0
x=-(35)/-49
x=(7).(5)/(7).(-7)=5/7
8
(11x-4)-(8x+14)=0
3x-18=0
(3).x+(-18)=0
x=-(-18)/3
x=- (3).(-6)/3=6
9
(-4x+9)-(-x-13)=0
-3x+22=0
(-3).x+(22)=0
X=-(22)/3 x=22/3
10
(11y-81)-(72y+102)=0
-61y-183=0
(-61).y+(-183)=0
y=-(-183)/-61
y=- (61).(-3)/(61).(-1)=3
11
(7x+16)-5+x-[(11x-3)-x]=0
(7x+11)+x(10x-3)=0
(8x+11)-(10x-3)=0
-2x+14=0
(-2).x+(14)=0
x=-(14)/-2
X=- (2).(7)/(2).(-1)=7
12
(3x+101)-4x-33-[(-16x+108)-100]=0
(-x+101)-33-(-16x+8)=0
(-x+68)-(-16x+8)=0
15x+60=0
(15).x+(60)=0
X=-(60)/15
X)- (15).(4)/(15)=-4
13
(-12x+14)+39x-18x-[(-60x+256)-657x]=0
(27x+14)-18x-(-717x+256)=0
(9x+14)-(-717x+256)=0
726x-242=0
(726).x+(-242)=0
X=-(-242)/726
X=- (242).(-1)/(242).(3)=1/3
14
-7x-30-51x-(84x-172)=0
-37x-51x-(84x-172)=0
-88x-(84x-172)=0
-172x+172=0
X=-(172)/-172
X=- (172)/(172).(-1)=1