Modeling Two-Step Expressions and Equations

Front

What is a two-step equation?

Back

A two-step equation is an algebraic equation that requires two operations to solve for the variable.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, perform inverse operations to both sides of the equation until the variable is alone on one side.

Front

What does it mean to 'solve' an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

If Eva has 'x' pins, how can we express Dulcina's pins?

Back

Dulcina has 'x + 34' pins.

Front

What is the total number of pins if Eva and Dulcina have 82 pins together?

Back

The equation is x + (x + 34) = 82.

Front

How do you set up an equation for a word problem?

Back

Identify the variables, write an equation based on the relationships described, and include known values.

Front

What is a bar model in mathematics?

Back

A bar model is a visual representation used to illustrate relationships between quantities in a problem.

Front

How can you represent the total earnings of a business in an equation?

Back

Total earnings = Investment recovery + Profit shared among partners.

Front

What does 'twice the number' mean in mathematical terms?

Back

'Twice the number' means to multiply the number by 2.

Front

If the total population is 4298 and the Hill Section has 188 more than twice the Lake Section, how do you express this?

Back

Let 'y' be the Lake Section population. Hill Section = 2y + 188.