Translating Expressions and Equations

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

the difference of 3 times a number and 7

• 3 - 7n
• 3n - 7
• 3n + 7 
• 3 / 7n

m plus the product of 6 and n 

• m + 6n
• m - 6 + n
• 6m + n
• m + 6 + n 

5 less than the product of 7 and s

• 7s - 5
• 5 - 7 + s
• 7(s - 5) 
• 5 - 7s

5 times a number, minus 8  

• 5m - 8
• 5(m + 8)
• 8m + 5
• 8(m + 5)

The product of 6 and y..

• 6 + y
• 6y
• y - 6
• y / 6

Five less than twice a number is equivalent to thirty.

• 5x - 2 = 30

• x - 5 = 30

• 2x - 5 = 30

• 5 - 2x = 30

Eight less than three times a number is equivalent to thirty four.

• 3x - 8 = 34

• 8x - 3 = 34

• 8 - 3x = 34

• 8 - x = 34

Twice the sum of four times and number and ten is equal to seventy two.

• 4x + 10 = 72

• 2(x + 10) = 72

• 2(4x + 10) = 72

• 8x + 10 = 72

Two more than 4 times a number is -18.

• 4x + 2 = -18
• 2x + 4 = -18
• 18 = 4x +2