Equivalent Expressions and Equations with Variables

Translate: the sum of two times a number and five

• 2 + y + 5

• 2 + 5y

• 2y + 5

• 2(y+5)

Tags

CCSS.6.EE.A.2A

Translate: Six fewer than twice a number is four.

• 6 - 2x = 4

• 2x - 6 = 4

• x² - 6 = 4

• 6 - x² = 4

Translate: Twice a number is 24.

• 2n = 24

• 2/n = 24

• 2 + n = 24

• 2 - n = 24

Translate:

Twice the sum of a number and 5 is 22.

• 2x+5=22

• 2x +22 = 5

• x²+5 = 22

• 2(x+5)=22

• 2

• 4

• 8

Tags

CCSS.8.EE.C.7B

Translate:

Three times the sum of a number and 7 is equivalent to 57.

• 3x + 7 = 57

• 3(x + 7) = 57

• 7x + 3 = 57

• 7(x + 3) = 57

Translate:

One - third of the sum of a number and 24 is equivalent to 10.

• 1⁄3(x + 24) = 10

• 1⁄3x + 24 = 10

• 1⁄3(x - 24) = 10

Translate:

Twice the difference of a number and 16 is equivalent to 28.

• 2x + 16 = 28

• 2x - 16 = 28

• 2(x + 16) = 28

• 2(x - 16) = 28

Translate: The total of 3 and twice a number is 11.

• 3 - 2n = 11

• 3 + n² = 11

• 3 + 2n = 11

• 3(2n) = 11

Translate the sentence into an equation.
Seven subtracted from n is 18 

• n + 7 = 18

• 7 - n = 18

• n - 7 = 18

• n + 7 = 18n