Question

4) Resolver las siguientes ecuaciones
me ayudan? gracias!!
a) - 24 : ( - 8 ) + 5 . x - 11 - 3 . x = x + 4

b) 3 . x - 4. 2 + 9 = 5.x - 81 : 3 + 2. x

c) - 3 . ( 3 - x ) = - 40 . ( x - 2 ) + 4

d) 2 . ( 3 . x - 15 ) - 4 . x + 20 = 2​

Answer 1

a) 3+5x-11-3x=x+4

-8+2x=x+4

2x-x = 4+8

x= 12

b) 3x-8+ 9 = 5x-27+ 2x

3x+1= 7x-27

3x-7x= -27-1

-4x = -28

x = -28/-4

x = 7

c)

-9 + 3x = -40x + 80 +4

3x + 40x = 84 + 9

43x = 93

x = 93 / 43

d)

6x - 30 - 4x +20 = 2

2x -10 = 2

x

2x = 10+2

2x = 12

x = 12/2

x = 6