Adding & Subtracting One-Step Equations (7th)

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step by performing the same operation on both sides of the equation.

Front

How do you isolate a variable in an equation?

Back

To isolate a variable, you perform inverse operations to get the variable alone on one side of the equation.

Front

What is the inverse operation of addition?

Back

The inverse operation of addition is subtraction.

Front

What is the inverse operation of subtraction?

Back

The inverse operation of subtraction is addition.

Front

Solve the equation: 50 = 12 + x

Back

x = 38 (Subtract 12 from both sides: 50 - 12 = x)

Front

Solve the equation: 46 = n + 19

Back

n = 27 (Subtract 19 from both sides: 46 - 19 = n)

Front

Solve the equation: m - 3/18 = 11/18

Back

m = 14/18 (Add 3/18 to both sides: m = 11/18 + 3/18)

Front

Solve the equation: x - 62 = 123

Back

x = 185 (Add 62 to both sides: x = 123 + 62)

Front

What is the first step to solve 15 = m - 5?

Back

Add 5 to both sides to isolate m.

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.