6.EE.B.7 Write and Solve Equations (x + p = q and px = q)

An EQUATION is defined as...

• an equal sign

• a variable as a term

• an expression

• two equivalent expressions

When writing an equation from a word problem, you have to...

• get the answer right away

• write two expressions

• just find the total

What is a variable?

• A mystery number that will NEVER be known

• A mystery number that will be known IF it is in an equation

Can you solve for x?

• No, because it is an expression

• No, because x is a factor

• Yes, because x = 10

• Yes, because x = 5

Can you solve for x?

• No, because its in an expression

• No, because x will always be a mystery

• Yes, because its the only variable in an equation

• Yes, because it needs to be unbalanced

Which scenario represents the equation:

v + 4 = 11

• Jasper has $7

• Jasper has $11. It is four more dollars than Valerie.

• Valerie has $4

• Jasper and Valerie have a total of $11

Which scenario represents the equation:

f - 5 = 17

• Gerald ran 17 miles, which was 5 miles fewer than Fiona.

• Fiona ran five miles less than 17 miles

• Gerald ran five miles less than 17 miles

• Gerald ran 17 miles and Fiona ran 12 miles

What property is shown here:

s - 10 = 6

+10 +10

• ADDITION Property of Equality

• SUBTRACTION Property of Equality

• MULTIPLICATION Property of Equality

• DIVISION Property of Equality

What is happening to the variable?

• It is doubled

• It is tripled

• It is split in half

• It is split in thirds

Pick the Equation: Tickets to the movie cost $11.25. If the class budget is $900, how many students can go?

• 900 - 11.25 = t

• t + 11.25 = 900

• 900 - 11.25 - 11.25 - 11.25 - 11.25

• 11.25t = 900