Translating Equations

Seven more than twice a number n is 1.

(Don't put any spaces in your answer.)

(a)  

Translate the following:

Three times the difference of a number and nine is seventy-two.

**Use x as your variable and no spaces.**

(a)  

One quarter the difference of a number and twenty eight is equal to nine.

• 0.25x - 28 = 9

• x - 7 = 9

Tags

CCSS.HSA.CED.A.3

Translate the following:

Negative 15 is b less than seventy-six

• -15 = b - 76

• b - (-15) = 76

• -15 = 76 - b

• -15 - b = 76

Tags

CCSS.6.EE.A.2A

Fifteen less than half a number is equivalent to eleven.

• (1/2)x + 15 = 11

• 2x - 15 = 11

• 15 - (1/2)x = 11

• (1/2)x - 15 = 11

Tags

CCSS.7.EE.B.4A

Five less than a number cubed is equivalent to thirty.

• 5 - 3x = 30

Half the difference of five time a number and eight is equivalent to nineteen.

• 5x + 8 = 19

• 5x - 8 = 19

• 5x - 8 = 9.5

Tags

CCSS.7.EE.B.4A

What is the difference between an expression and equation?

• Expressions have an equal sign and equations do not have an equal sign
• Expressions do not have an equal sign and equations do have an equal sign
• There is not a difference
• Expressions do not have variables and equations have variables

A number tripled subtracted from 60 is the same as 21.

• 3c − 60 = 21
• 60 − 3 = 21c
• 60 − 3c = 21
• c(60 − 3) = 21

Tags

CCSS.HSA.CED.A.3

Eight less than three times a number is equivalent to ten more than one and half times the same number. 

• 3x - 8 = 0.5x + 10 
• 8 - 3x = 1.5x + 10 
• 3x - 8 = 1.5x + 10
• 8 - 3x = 0.5x + 10