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257.2. Identical expressions.

Check the correct answer!

What kind of number must be written in Y place, for the expression 5*Y-35=87-12 to be true?
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Identical expressions

Solve tasks to find hidden Geo point coordinates

  1. Geometry: Triangle and its elements, angle opposite and adjacent edge, opposite and adjacent angle in triangle. Triangle median, bisector, height, triangle inequality.
  2. Algebra: Variable value
  3. Algebra: Opposite type inequalities.
  4. Algebra: Fraction (division) basic properties
  5. Geometry: Circle line, center, radius, diameter, chord, curve.
  6. Geometry: Point, straight line, plane, geometric figure
  7. Algebra: Equation properties.
  8. Algebra: Subscript concept: base, index, degree
  9. Algebra: Proportionality factor k
  10. Algebra: Numerical normal form