Question

b)3(x-2)=2x-4

c) 3(x-2)=4(3-c)

d)7(x+10)=5(x+3)

Answer 1

b) 3(x-2)=2x-4
3x-6=2x-4
3x-2x= -4+6
x=2

c) 3(x-2) =4(3-c)
3x-6=12-4c
3x+4c=12+6
3x+4c=18

d) 7(x+10)=5(x+3)
7x+70=5x+15
7x-5x=15-70
2x= -55
x= -55/2
x= -27,5

Answer 2

 Olá !!! :)


 b)

3 ( x - 2 ) = 2 x - 4

3 x - 6 = 2 x - 4

3 x - 2 x = - 4 + 6

x = 2

c)

3 ( x - 2 ) = 4 ( 3 - c )

3 x - 6 = 12 - 4 c

3 x + 4 c = 12 + 6

3 x + 4 c = 18

d)

7 ( x + 10 ) = 5 ( x + 3 )

7 x + 70 = 5 x + 15

7 x - 5 x = 15 - 70

2 x = - 55

x = - 55 / 2

x = - 27 , 5


 Abraços !!! :)