One triangle has a weight of 6 grams. What is the weight of one square?

Set up an equation for the left side and the right side.

Left side: 3 triangles x 6 = 18 + 4 squares

Right side: 4 triangles x 6 = 24 + 2 squares

Set them equal to each other :

18 + 4 squares = 24 + 2 squares

Subtract 18 from both sides:

4 squares = 6 + 2 squares

Subtract 2 squares from each side

2 squares = 6

Divide both sides by 2

1 square = 3 grams

The answer is 3 grams

(x+3)(x+1)

Step-by-step explanation:

x^2+4x+3

What 2 numbers multiply to 3 and add to 4

3*1 =3

3+1 = 4

(x+3)(x+1)