1) equal sign; single unknown letter (usually) - 1.Equation, 2) solve - 2.Equation, 3) 2x + 4 = 6 - 4x - 3.Equation, 1) several unknowns; no equal sign - 1.Expression, 2) substitute values OR simplify - 2.Expression, 3) 2a + 3(a + b) - 3.Expression, 1) equal sign and several unknowns; single letter on l.h.s. - 1.Formula, 2) substitute values OR rearrange - 2.Formula, 3) A = ∏r2 - 3.Formula, 1) several unknowns; equal sign. - 1.Identity, 2) test values OR prove correct - 2.Identity, 3) 2(L + W) = 2L + 2W - 3.Identity,

Expressions, Equations, Formulas and Identities

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تضمين

لوحة الصدارة

النمط البصري

الخيارات

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