Expression vs Equations Combining Like Terms

You need to combine like terms when you see more than two terms per side of an equation.

Example: 3x + 5 - 2x = 6x + 3

• True

• False

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the first step of doing the distributive property.

• The mistake was made on the second step of moving the variable.

X+X+X+X+X

• X + 5 

• 5X

• X+X+X+X+X+5

• X to the 5th power 

y + x + y + y + x 

• 2 + 3 

• x + y 

• 2x + 3y 

• 5xy 

r + 10r

• 11r

• -11r

• 9r

• -11

Simplify the expression: 2x + 1 + 7x 

• 10x

• 10

• 9x + 1

• 9 + 1x

Simplify by combining like terms:
5a + 2b - 3a + 4

• 8a + 2b + 4

• 2a + 2b + 4

• 8ab

• 4ab + 4

Simplify the expression: 7v + 2 + 12 + 2v

• 23

• 23v

• 9 + 14v

• 9v + 14

3(x-6)+2x=22

• x=8

• x=2

• x=18

• x=3

Is there a mistake on the equation solved? If so where was the mistake made?

• This equation is solved correctly.

• The mistake was made on the second step doing the distributive property on the right side.

• The mistake was made on the third step of moving the variables.

• The mistake was made on the fourth step of determining true/false statement as infinite vs no solution.

• The mistake was made on the first step doing the distributive property on the left side.