Expression Vs. Equation

Which among the following is an expression?

• 2x + 3y = 7

• 4² + 4xy

• 2^x = 2xc

• 3xy (4x + 1) = 3z

Which among the choices is an equation

• the sum of twice a number and 4

• ratio of a number and seventy-eight

• forty-three is greater than twice a number

• a number raised to itself

What statement is not true about expressions.

• Expressions can be simplified

• Expressions can have letters, numbers, and operators

• Expressions can be solved

• Expressions can be compared to a phrase

Which among the following best represent the following equation: The sum of a number raised to two and a variable a is 4 less than 2 multiplied to the same number

•  $x^2+a=2x-4$  

•  $x^2-a=2x-4$  

•  $x^2+a=4-2x$  

•  $x^2+a=2a-4$  

Solve for m: $m-16-4+3=8$  

• 25

• - 25

• 31

• -15

Rosita walked 12km an hour, and it took her x hours from her house to the "palengke". How long did she walked for from her house to the "palengke?" Which expression best represent the phrase?

• $12=x$

• $\frac{x}{12}$

• $\frac{12}{x}$

• $12x$

An _________ must contain two or more __________ connected by an inequality sign.

• equation, expression

• expression, equation

• expression, variable

• equation, variable

 $2x^3-3\left(x+y\right)$  is an example of __________

• Numerical Expression

• Algebraic Expression

• Numerical Equation

• Algebraic Equation

 $200\left(15-28\right)=2600$  

• Numerical Expression

• Algebraic Expression

• Numerical Equation

• Algebraic Equation