Question

In this number sentence, both triangles represent the same number. 32 - (triangle) = (triangle) - 8. What number do the triangles represent?

Answer 1

Solution:

Let triangle be x

32 - x = x - 8 (add 8 on both sides)

40 - x = x (add x on both sides)

40 = 2x (divide by 2 on both sides )

40/2 = 2x/2

x = 20

Answer : The triangles represent the number 20

Answer 2

Δ = 20

Explanation:

let triangle be Δ , then

32 - Δ = Δ - 8 ( subtract 32 from both sides )

- Δ = Δ - 40 ( subtract Δ from both sides )

- 2Δ = - 40 ( divide both sides by 2 )

Δ = 20