Question

Resolver las ecuaciones:
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​

Answer 1

Respuesta:

1. 5x = 8x - 15

5x - 8x = -15

-3x = -15

x = -15/-3

x = 5

2. 4x + 1 = 2

4x = 2-1

4x = 1

x = 1/4

3. y - 5 = 3y - 25

y - 3y = -25 + 5

-2y = -20

y = -20/-2

y = 10

4. 5x + 6 = 10x + 5

5x -10x = 5 -6

-5x = -1

x = -1/-5

x = 1/5

x= 0.2

5. 9y - 11 = -10 + 12y

9y -12y = -10 +11

-3y = 1

y = 1/-3

y =-0.33...

6. 21 - 6x = 27 - 8x

21 - 27 = -8x +6x

-6 = -2x

-6/-2 = x

3 = x   o   x = 3

7. 11x + 5x - 1 = 65x - 36

11x + 5x - 65x = -36 +1

-49x = -35

x = -35/-49

x = 0.714285714

x = 0.7

Explicación paso a paso: