Modeling Equivalent Expressions

Modeling Equivalent Expressions

11.1

Observe this scale

Equation for the left side:

Value of that equation:

Equation for the right side:

Value of that equation:

Since each side has the same values the equations are______

What if there were 2+5 on the left side and 3 on the right.

What would happen?

How could we make it equal?

Multiple Choice

Which of the following would create a balanced scale?

• 5+7 = 2 +3

• 5-1 = 6-2

• 3+8 = 5-3

• 8*2 = 2+1

5-1 = 6-2

Let's replace one of the numbers with a variable!

What would that variable equal?

Multiple Choice

What is the value of n in the following equation: n - 6= 5

• 9

• 10

• 11

• 5

Multiple Choice

What is the value of n in the following equation: 3+n = 5

• 2

• 4

• 6

• 8

Multiple Choice

What is the value of k in the following equation: 3k=21

• 4

• 5

• 6

• 7

Multiple Choice

What is the value of T in the following equation: 56/T = 7

• 8

• 7

• 6

• 5