17/23-(7/21+(11/23-x))=3/23

Question

17/23-(7/21+(11/23-x))=3/23

Answer 1

¹⁷/₂₃-(⁷/₂₁+(¹¹/₂₃-x))=³/₂₃
¹⁷/₂₃-⁷/₂₁+¹¹/₂₃-x=³/₂₃
-x=³/₂₃-¹⁷/₂₃+⁷/₂₁-¹¹/₂₃
-x= -²⁵/₂₃+⁷/₂₁
-x= -²⁵ˣ²¹/₄₈₃+⁷ˣ²³/₄₈₃
-x= -⁵²⁵/₄₈₃+¹⁶¹/₄₈₃
-x= -³⁶⁴/₄₈₃
x= ³⁶⁴/₄₈₃
х≈0,75