Question

me pueden ayudar? 5(2x-5)=-25
6(3x-2)=24
9(3x-7)=18
2(x+8)=40-x
3(8x-2)=4(5x+6)
2(3x-7)=4x-6
Urge, de verdad, es para mañana

Answer 1

5 ( 2x - 5 ) = - 25
10x - 25 = - 25
10x = - 25 + 25
10x = 0
x = 0 / 10
x = 0


6(3x-2)=24
18x - 12 = 24
18x = 24 + 12
18x = 36 
x = 36 / 18 
x = 2


9(3x-7)=18
27x - 63 = 18
27x = 18 + 63
27x = 81
x = 81 / 27
x = 3


2(x+8)=40-x
2x + 16 = 40 - x
2x + x = 40 - 16
3x = 24
x = 24 / 3
x = 8


3(8x-2)=4(5x+6)
24x - 6 = 20x + 24
24x - 20x = 24 + 6
4x = 30
x = 30 / 4
x = 15 / 2


2(3x-7)=4x-6
6x - 14 = 4x - 6
6x - 4x = - 6 + 14
2x = 8 
x = 8 / 2
x = 4