Question

a)4+x=7x-2+x

b)8x-1=x+2x+4

c)-6x-2=-3x-10

Answer 1

a)

4+x=7x-2+x

4  +x = 8x - 2

x - 8x = -2 - 4

-7x = -6   /:(-7)

x = 6/7

 

b)

8x-1=x+2x+4

8x - 1 = 3x + 4

8x - 3x = 4 + 1

5x = 5    /:5

x = 1

 

c)

-6x-2=-3x-10

-6x + 3x = -10 + 2

-3x = -8   /:(-3)

x = 8/3

x = 2 i 2/3