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224.3. Identity.

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Calculate expression \frac{36}{3\times 4\times b}+\frac{a\times 3\times b}{9\times b}-\frac{54}{a\times b} value, if b=3 and a=2b
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Identity

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  3. Geometry: Narrow, wide, straight, extended, opened, full angle. Equal angles, bisector.
  4. Algebra: Polynomial.
  5. Algebra: Monomial coefficient
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  7. Algebra: Concept of direct proportionality
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  9. Algebra: Trinomial.
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  12. Algebra: Identical expressions.
  13. Algebra: Identical expression transformation.
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  16. Algebra: Monomial (1. degree).
  17. Algebra: Number interval and their types.
  18. Geometry: Narrow, wide, straight, extended, opened, full angle. Equal angles, bisector.
  19. Algebra: Functions expression with formula, table, diagram
  20. Geometry: Inner unilateral and cross angles, alternate interiour angles, parallel straight lines, properties, and parallel signs.
  21. Algebra: Identical expression transformation.
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  23. Algebra: Connection concept
  24. Algebra: Numerical module
  25. Algebra: Connection concept
  26. Algebra: Binomial.
  27. Geometry: Opposite, adjacent angles, perpendiculars against a straight line.
  28. Algebra: Linear function y = kx + b
  29. Geometry: Narrow, wide, straight, extended, opened, full angle. Equal angles, bisector.
  30. Algebra: Equation roots.
  31. Algebra: Identity.
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  35. Algebra: Coordinate axis and point coordinate
  36. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
  37. Algebra: Identical expression transformation.
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  39. Algebra: Numerical connections
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