Simplifying Expressions: One variable/Two step equation

Identify the equation modeled in the picture, and then find its solution.

• Equation: 2x + 3 = 8; Solution: x = 5

• Equation: 2x – 3 = 8 ; Solution: x = 5.5

• Equation: 2x + 3 = 8; Solution: x = 2.5

• Equation: x + 3 = 8; Solution: x = 5

Tags

CCSS.7.EE.B.4A

Which number line best represents the solution to the following problem?

2x+20=43

• 
• 
• 
• 

Tags

CCSS.7.EE.B.4A

What is an OPERATOR?

• multiplying and/or division signs

• adding, subtracting, multiplying, and dividing signs

• a person who operates equipment or a machine

• addition and/or subtraction signs

Tags

CCSS.6.EE.A.2C

What are LIKE TERMS?

• Must have the same numbers (coefficient or constant) to be combined.

• Must have the same variable and/or the same exponent (power) to be combined.

• Any term can be combined together in an expression.

• Means that there are words that have similar meanings in a sentence.

Tags

CCSS.6.EE.A.2B

What is a COEFFICIENT?

• A number without a variable

• An operator

• The number in front of a variable

• a term

Tags

CCSS.6.EE.A.2B

What does a TERM contain?

• numbers separated by an operator in an expression

• just variables

• just numbers

• constant or a variable separated by a + or -

Tags

CCSS.6.EE.A.2B

What does an EXPRESSION contain?

• numbers, variables, operators, and an equal sign

• just numbers and variables

• numbers, variables, and operators ONLY

• ONLY variables

Tags

CCSS.6.EE.A.2B

Which student wrote an equation in which x = 4 is not a solution?

• Anna only

• Bernice only

• Both Anna and Bernice

• Neither Anna nor Bernice

Tags

CCSS.6.EE.B.5

Solve. x/3 = 46

• x=15.3

• x=138

• x=43

• x=49

Tags

CCSS.6.EE.B.7

Solve. 3x = 105

• x=315

• x=108

• x=102

• x=35

Tags

CCSS.6.EE.B.7