Question

a)6x+60=2x
b)3x-5=x-2
c)100+7x=2x
d)5x-4=2x+9

Answer 1

a)

6x + 60 = 2x

6x - 2x = -60

4x = -60

x = -60/4

x = -15

b)

3x - 5 = x - 2

3x - x = -2 + 5

2x = 3

x = 3/2

c)

100 + 7x = 2x

7x - 2x = -100

5x = -100

x = -100/5

x = -20

d)

5x - 4 = 2x + 9

5x - 2x = 9 + 4

3x = 13

x = 13/3

Answer 2

Oi...

a)

6x + 60 = 2x

6x - 2x = - 60

4x = - 60

x = - 60/4

x = - 15

 

b)

3x - 5 = x - 2

3x - x = - 2 + 5

2x = 3

x = 3/2

c)

100 + 7x = 2x

7x - 2x = - 100

5x = - 100

x = - 100/5

x = - 20

d)

5x - 4 = 2x + 9

5x - 2x = 9 + 4

3x = 13

x = 13/3

Bons estudos.