Rezolvati in multimea numerelor naturale ecuatiilor:

a) x+17=23 b) 29-x=11 c) 12 x x =48 d) 75: x=3 e) x: 37=42

Select the sequences that are geometric.

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

The lengths of all sides of a triangle are integers when measured in decimeters. one of the sides has length of 1 dm and another of 3 dm. find the perimeter of the triangle.'