Solving two-step 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 a two-step equation?

Back

To isolate a variable, perform the inverse operations in reverse order: first undo addition or subtraction, then undo multiplication or division.

Front

Solve for x: 5x + 4 = -6

Back

x = -2

Front

Solve for n: 6n + 4 = -26

Back

n = -5

Front

Combine like terms: 2x - 3 + 4x = 27

Back

x = 5

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, calculated as the change in y over the change in x.

Front

Find the slope from the table: (1, 2), (2, 6), (3, 10)

Back

Slope = 4

Front

Solve for y: y/3 + 6 = 9

Back

y = 9

Front

What is the first step to solve the equation 3x - 5 = 10?

Back

Add 5 to both sides to isolate the term with x.

Front

What does it mean to 'undo' an operation in algebra?

Back

To 'undo' an operation means to perform the opposite operation, such as adding to undo subtraction.