one step equations :adding and subtracting

Front

What is a one-step equation?

Back

A one-step equation is an algebraic equation that can be solved in a single step, typically by adding, subtracting, multiplying, or dividing both sides by the same number.

Front

How do you solve the equation 20.5 = x + 4?

Back

To solve for x, subtract 4 from both sides: x = 20.5 - 4, which gives x = 16.5.

Front

What is the solution to the equation 2x = 10?

Back

To find x, divide both sides by 2: x = 10 / 2, which gives x = 5.

Front

Translate the equation x - 4 = 11 into a verbal sentence.

Back

The difference of a number and 4 is 11.

Front

How do you isolate x in the equation x + a = b?

Back

To isolate x, subtract a from both sides: x = b - a.

Front

What is the solution to the equation y - 33 = 147?

Back

To solve for y, add 33 to both sides: y = 147 + 33, which gives y = 180.

Front

What operation would you use to solve x + 7 = 12?

Back

You would subtract 7 from both sides to isolate x.

Front

If x - 5 = 10, what is the value of x?

Back

Add 5 to both sides: x = 10 + 5, which gives x = 15.

Front

What does it mean to 'isolate the variable' in an equation?

Back

Isolating the variable means to manipulate the equation so that the variable is on one side by itself, allowing you to find its value.

Front

How can you check if your solution to an equation is correct?

Back

You can substitute your solution back into the original equation to see if both sides are equal.