Addition/Subtraction Equations

Front

What is the goal when solving an equation?

Back

Get the variable by itself.

Front

What is the first step to solve the equation: 12 = d - 8?

Back

Add 8 to both sides.

Front

Solve for c: c - 8 = 5.

Back

c = 13.

Front

Write as an equation: a number b increased by 3 is 7.

Back

b + 3 = 7.

Front

What is the inverse operation of adding (+)?

Back

Subtracting (-).

Front

What does it mean to isolate a variable in an equation?

Back

To get the variable alone on one side of the equation.

Front

If x + 5 = 12, what is x?

Back

x = 7.

Front

What is the equation for: 10 less than a number n is 15?

Back

n - 10 = 15.

Front

What is the first step to solve the equation: x - 4 = 9?

Back

Add 4 to both sides.

Front

If 3y = 21, what is y?

Back

y = 7.