8th U4L2 - Keeping Equations Balanced

Front

What does it mean to keep equations balanced?

Back

Keeping equations balanced means that both sides of the equation have the same value. Any operation performed on one side must also be performed on the other side to maintain equality.

Front

What is the value of a purple trapezoid in this context?

Back

6

Front

What equation is represented by the model with a purple trapezoid and a number 3?

Back

x + 3 = 7

Front

What does a red trapezoid equal in this context?

Back

4

Front

What does a blue hexagon represent in this context?

Back

3

Front

What is the equation for a hanger model that has two equal weights of 2?

Back

2 + 2 = x

Front

What is the first step to solve the equation x + 3 = 7?

Back

Subtract 3 from both sides to isolate x.

Front

What is the solution to the equation x - 3 = 7?

Back

x = 10

Front

If 3x = 12, what is the value of x?

Back

x = 4

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.