2(__ x - 2) = 6x + 5
(There's only one solution and you need to find the missing number!)

Flashback to semester a. are triangles pqr and stu congruent? what is the congruency that proves they are congruent? what is the perimeter of triangle pqr? show your work.

Write a fraction less than 1, which has a denominator of 6 and is greater than 3/4 plz answer !

Liz had 140 pens and inna had 100 pens. after inna gave liz some pens, liz had 3 times as many pens as inna. how many pens did inna give liz?