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216.3. Identity.

Check the correct answer!

Is the given expression an identity? 3x+8x-2x=3(x+x+x)
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Identity

Solve tasks to find hidden Geo point coordinates

  1. Geometry: Angle, angle edges and peak, value, degree, measurement.
  2. Algebra: Concept of equation.
  3. Algebra: Mutually opposite monomials.
  4. Geometry: Concept definition, concept sign.
  5. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
  6. Algebra: Monomial normal form
  7. Algebra: Percent and proportions
  8. Algebra: Opposite type inequalities.
  9. Algebra: Identity.
  10. Algebra: Numerical equalities.
  11. Algebra: Direct proportionality function y = kx
  12. Algebra: Linear inequality solution
  13. Algebra: Equation roots.
  14. Algebra: Monomial normal form
  15. Algebra: Ordinary and decimal fractions
  16. Algebra: Coordinate beginning point
  17. Algebra: Polynomial opposite polynomial.
  18. Algebra: Equation properties.
  19. Algebra: Contracted multiplication formula: addition and subtraction square; square difference.
  20. Algebra: Diagram y = kx + b (drawing)
  21. Algebra: Quadrant
  22. Geometry: Angle, angle edges and peak, value, degree, measurement.
  23. Algebra: Monomial normal form
  24. Algebra: Variable value.
  25. Geometry: Broken line and elements, elementary broken line, closed broken line, broken lines length, polygon, angles, edges peaks, diagonal, polygon perimeter.
  26. Algebra: Function y = x²
  27. Algebra: Concept of equation.
  28. Geometry: Angle, angle edges and peak, value, degree, measurement.
  29. Algebra: Ordinary and decimal fractions
  30. Algebra: Abscissa axis
  31. Algebra: Functions expression with formula, table, diagram
  32. Algebra: Rational number
  33. Geometry: Equal figures, line segments, lengths, midpoints, distance between two points.
  34. Geometry: Narrow, wide, straight, extended, opened, full angle. Equal angles, bisector.
  35. Algebra: Linear inequalities ax + b > 0, where a, b ∈ Q
  36. Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.
  37. Algebra: Notation –x < 3 or x ∈ (– ∞; 3)
  38. Algebra: Connection concept
  39. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.
  40. Algebra: Connection concept
  41. Algebra: Numerical equalities.
  42. Geometry: Point belongs (or not) to the straight line (beam, line segment), half-plane, crossed straight lines, beam, opposite beams, line segment, properties.