Write the number 0.21212121…. as a fraction.

100x = 21.212121

100x - x = 21.212121... – 0.212121...

99x = 21. ( divide both side by 90)

x = 21/99

x = 21:3/99:3

x = 7/33

1: -2 3/4, -2 1/2, -14, 0, 3, 8 1/3

2: -4, -3, -2 1/2, -2 1/4, 3 1/4,

step-by-step explanation:

let's solve your equation step-by-step.

4x+2=2x+12

step 1: subtract 2x from both sides.

4x+2−2x=2x+12−2x

2x+2=12

step 2: subtract 2 from both sides.

2x+2−2=12−2

2x=10

step 3: divide both sides by 2.

2x

2

=

10

2

x=5

step-by-step explanation: