bell work 12-17-24 2 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: 4x + 7 = 23

Back

x = 4

Front

Solve for c: 3c + 5 = 23

Back

c = 6

Front

Solve for p: 4p + 5 = 17

Back

p = 3

Front

Solve for a: 15 = 2a + 7

Back

a = 4

Front

Solve for x: 2x + 16 = 130

Back

x = 57

Front

What is the first step to solve the equation 4x + 7 = 23?

Back

Subtract 7 from both sides to get 4x = 16.

Front

What is the second step to solve the equation 4x = 16?

Back

Divide both sides by 4 to find x.

Front

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

Back

To 'undo' an operation means to perform the opposite operation to isolate the variable.