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137.3. Variable value

Write the correct answer!

Identify the value of variable!
x*4-5=19
Grade:
7
Subject
Algebra
Theme
Simple algebric expression transformation
Subtheme
Variable value

Solve tasks to find hidden Geo point coordinates

  1. Algebra: Monomial fraction form
  2. Algebra: Notation –x < 3 or x ∈ (– ∞; 3)
  3. Algebra: Direct proportionality function y = kx
  4. Algebra: Function y = x²
  5. Algebra: Notation –x < 3 or x ∈ (– ∞; 3)
  6. Algebra: Polynomial normal form.
  7. Algebra: Trinomial.
  8. Algebra: Polynomial opposite polynomial.
  9. Geometry: Isosceles triangle, sidewall, basis, equilateral triangle, line segment mid-perpendicule, connection between angles and edges in triangle.
  10. Geometry: Triangle angle sum, straight angle cathetus, hypotenuse, Right-angled triangle similarity signs.