maths.free › Algebra › Solving Linear Equations › Introduction to Solving Linear Equations
Introduction to Solving Linear Equations
Introduction to Solving Linear Equations — from OpenStax Prealgebra 2e.
Introduction to Solving Linear Equations
Teetering high above the floor, this amazing mobile remains aloft thanks to its carefully balanced mass. Any shift in either direction could cause the mobile to become lopsided, or even crash downward. In this chapter, we will solve equations by keeping quantities on both sides of an equal sign in perfect balance.
Ankehitriny ianao Tsy misy milina fanisana afaka mamaha io olana io, saingy azo atao ny maminavina ny ampahany amin'io. Andramo ny iray eto ambany, na soraty ny anao manokana.
Ny kaonty maimaimpoana dia mampiditra ny fanamarihana amin'ny lesona tsirairay, ny tahirin'ny zavatra vitanao, ny olana voavahao ao amin'ny toerana iray, ary ny mpampianatra iray izay azonao anontanio momba ity pejy ity. misokatra ho an'ny rehetra ny matematika, na efa niditra na tsy niditra.
Misoratra anarana FidiranaMarika ampiasaina eto
Tsindrio ny marika iray mba hahitana ny famaritana feno, sary, ary ny dikan'ny litera tsirairay ao aminy.
Fanontaniana napetrak'ireo olona
What does it mean to solve an equation?
To find every value of the unknown that makes both sides equal. Each step is an operation applied to both sides that keeps the solution set the same, until the unknown stands alone.
Why do I sometimes get two answers?
A quadratic can cross the axis twice, so it can have two solutions. A degree-n polynomial has up to n. The graph shows where each one comes from.
How do I know whether to factor or use the quadratic formula?
Try factoring for a few seconds: look for two numbers that multiply to a·c and add to b. If nothing obvious appears, the discriminant b² − 4ac tells you how many real roots there are, and the formula finds them without guessing.
Nalaina avy amin'ny OpenStax Prealgebra 2e (CC BY-NC-SA 4.0). Nofafana sy nanazavana indray eto; ny hadisoana dia antsika.
Mbola maro ao Algebra
Linear equationsQuadratic equationsSystems of equationsInequalitiesFactoringExpandingSimplifying expressionsFunctions and graphsExponential and logarithmic equationsPolynomial equationsAbsolute value