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1409.1. Identity.

Write the correct answer!

Given a=b+c un b=2c. Type expression identity by determing c, b with a!
Simple algebric expression transformation

Solve tasks to find hidden Geo point coordinates

  1. Geometry: Three point mutual arrangement.
  2. Algebra: Number gap and their types.
  3. Algebra: Monomial normal form
  4. Algebra: Equation properties.
  5. Algebra: Number interval and their types.
  6. Algebra: Polynomial.
  7. Algebra: Connection concept
  8. Algebra: Fraction (division) basic properties
  9. Algebra: Conditioned inequality properties
  10. Algebra: Numerical connections
  11. Algebra: Identity.
  12. Algebra: Ordinary and decimal fractions
  13. Algebra: Monomial fraction form
  14. Geometry: Opposite, adjacent angles, perpendiculars against a straight line.
  15. Algebra: Subscript concept: base, index, degree
  16. Algebra: Numerical normal form
  17. Geometry: Concept definition, concept sign.
  18. Algebra: Mathematics expression. Algebraic expression.
  19. Algebra: Ordinary and decimal fractions
  20. Algebra: Trinomial.
  21. Algebra: Numerical module
  22. Algebra: Opposite type inequalities.
  23. Algebra: Monomial coefficient
  24. Geometry: Isosceles triangle, sidewall, basis, equilateral triangle, line segment mid-perpendicule, connection between angles and edges in triangle.
  25. Geometry: Equal figures, line segments, lengths, midpoints, distance between two points.
  26. Algebra: Conditioned inequality properties
  27. Algebra: Ordinary and decimal fractions
  28. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
  29. Algebra: Opposite type inequalities.
  30. Algebra: Equation properties.
  31. Geometry: Concept definition, concept sign.
  32. Algebra: Polynomial opposite polynomial.
  33. Algebra: Equivalent equations.
  34. Algebra: Identity.
  35. Algebra: Contracted multiplication formula: addition and subtraction square; square difference.
  36. Geometry: Three point mutual arrangement.
  37. Algebra: Numerical inequalities and their properties.
  38. Algebra: Mutually equal monomials
  39. Algebra: Polynomial opposite polynomial.
  40. Geometry: Broken line and elements, elementary broken line, closed broken line, broken lines length, polygon, angles, edges peaks, diagonal, polygon perimeter.
  41. Algebra: Fraction (division) basic properties
  42. Algebra: Ordinary and decimal fractions