One Step Equation Hard

Now use your equation to solve:

Last Friday Marco had $29. Over the weekend he received some money for cleaning the attic. He now has $41. How much money did he receive?

• Marco received $20.

• Marco received $1.42.

• Marco received $12.

• Marco received $70.

How do you feel about solving one-step equations from story problems?

• It is super easy. I can do every problem.

• I'm pretty good at it. I can do most of the problems.

• Some are easy and some are hard. I can do about half of the problems.

• It is somewhat hard. I can only do a couple problems.

• It is very hard. I do not understand how to do any of the problems.

Last Friday Marco had $29. Over the weekend he received some money for cleaning the attic. He now has $41. Write an equation to find how much money he received?

Which of the following are important to remember when solving equations?

• Whatever you do to one side of the equal sign, you do the same thing on the other side.

• The goal is to get the variable on the left side of the equal sign

• We need to undo the operation being shown by using the inverse (or opposite) operation.

• Whatever you do to one side of the equal sign, you do the opposite on the other side.

• The goal is to get the variable alone on one side of the equal sign.

Mathematical Equivalence

ON

The equation 10 = x - 3 is represented by the model shown.

Which represents the solution to this equation?​ (a)  

• x = 13

• x = 3

• x = 7

• x = -7

Solve: y -7 = 5

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON

Mathematical Equivalence

ON