Represent and Solve Equations

Identify the property you would use to solve this equation:

Identifica la propiedad que usarías para resolver esta ecuación: 4x = 72

• Addition Property of Equality

• Subtraction Property of Equality

• Multiplication Property of Equality

• Division Property of Equality

Identify the property you would use to solve this equation:

Identifica la propiedad que usarías para resolver esta ecuación: y – 7 = 28

• Additive Property of Equality

• Subtraction Property of Equality

• Multiplicative Property of Equality

• Division Property of Equality

Which property justifies the work in solving this equation?

¿Qué propiedad justifica el trabajo de resolver esta ecuación?

• Addition Property of Equality

• Additive Inverse Property

• Identity Property of Addition

• Subtraction Property of Equality

Which property justifies the work in solving this equation?

¿Qué propiedad justifica el trabajo de resolver esta ecuación?

• Addition Property of Equality

• Additive Inverse Property

• Identity Property of Addition

• Subtraction Property of Equality

• Add 9 to both sides

• Subtract 9 from each side

• Divide both sides by 9

• Multiply both sides by 9

Solve the equation:

Resuelve la ecuación: a + 2.4 = 7.8

• a = 10.2

• a = 5.4

• a = 17.76

• a = 3.25

Solve the equation:

Resuelve la ecuación: 3x = 27

• x = 9

• x = 24

• x = 81

• x = 30

What is the difference between an expression and an equation?

¿Cuál es la diferencia entre una expresión y una ecuación?

• Expressions have an equal sign and equations do not.

  Las expresiones tienen un signo igual y las ecuaciones no.

• Equations have an equal sign and expressions do not.

  Las ecuaciones tienen un signo igual y las expresiones no.