One Step Equations with Decimals

Front

What is a one-step equation?

Back

A one-step equation is an equation that can be solved in one operation, such as addition, subtraction, multiplication, or division.

Front

How do you solve the equation x + 100.45 = 200.19?

Back

Subtract 100.45 from both sides to find x: x = 200.19 - 100.45 = 99.74.

Front

What is the solution to the equation 3.5x = 7.49?

Back

Divide both sides by 3.5 to find x: x = 7.49 / 3.5 = 2.14.

Front

How do you isolate x in the equation x - 7.09 = 10.89?

Back

Add 7.09 to both sides to find x: x = 10.89 + 7.09 = 17.98.

Front

What is the method to solve 124.875 = 18.5x?

Back

Divide both sides by 18.5 to find x: x = 124.875 / 18.5 = 6.75.

Front

How do you solve the equation 1.6 = x/3.9?

Back

Multiply both sides by 3.9 to find x: x = 1.6 * 3.9 = 6.24.

Front

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

Back

Isolating a variable means to manipulate the equation so that the variable is on one side by itself.

Front

What is the first step in solving x + a = b?

Back

Subtract a from both sides to isolate x: x = b - a.

Front

What is the first step in solving ax = b?

Back

Divide both sides by a to isolate x: x = b / a.

Front

What is the importance of checking your solution in an equation?

Back

Checking your solution ensures that the value you found satisfies the original equation.