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 the reverse order of how they are applied.

Front

Solve for a: 33 = 4a - 7

Back

a = 10

Front

What is the first step to solve the equation 6 - 3a = 21?

Back

Subtract 6 from both sides to get -3a = 15.

Front

Solve for a: 6 - 3a = 21

Back

a = -5

Front

What does it mean to 'balance' an equation?

Back

Balancing an equation means keeping both sides equal by performing the same operation on both sides.

Front

Solve for a: -3a + 8 = 14

Back

a = -2

Front

What is the purpose of using variables in equations?

Back

Variables represent unknown values that we can solve for using equations.

Front

Solve for x: x / 2 - 5 = 3

Back

x = 16

Front

What is the equation to find out how many students were on each bus if 331 students went on a field trip, 6 buses were filled, and 7 students traveled in cars?

Back

331 = 6x + 7