Given :
- 8 × 4 = (∆ × 7) - (∆ × 3)
To Find :
Solution :
[tex] \tt \dashrightarrow 8 \times 4 = ( \triangle \times 7) - (\triangle \times 3)[/tex]
[tex] \tt \dashrightarrow 32 = 7 \triangle - 3\triangle [/tex]
[tex] \tt \dashrightarrow 32 = 4 \triangle [/tex]
[tex]\tt \dashrightarrow \cancel\dfrac{32}{4} = \triangle [/tex]
[tex]\tt \dashrightarrow 8 = \triangle [/tex]
[tex]\tt \dashrightarrow \triangle = 8 [/tex]
Hence, value of ∆ is 8.
