Solving Word Problems using Equations

Twice a number is equal to six more than the number.

• 2x = x + 6

• 6+2 = x

• x = 2x +6

• 6 = 2x

Six less than a number is equal to one more than twice the number.

• 6 - x = 2x +1

• 2x -6 = x +1

• x - 6 = 2x +1

• -6 - x = 2x + 1

One more than the product of a number and three is equal to five more than the number.

• 3 + x + 1 = x + 5

• 3x + 1 = x + 5

• 3 + 1x = 5x

• 3x + 1 = 5x

The length of a rectangle is twice its width. If the perimeter is 42cm find its dimensions. Click all answers that are correct.

• 2x + x + 2x + x = 42

• 5x = 42 + x

• 6x = 42

• 2x + x = 42

The length of a rectangle is 5cm longer than its width. If its perimeter is 42 cm find its dimensions. Click all correct answers.

• 4x + 5 = 42

• 4x + 10 = 42

• x + 5 + x + x + 5 + x = 42

• 2x + 5x =42

r divided by 8 is 9

• r/8 = 9
• 8/r = 9
• r = r/8
• 9 = 8/r

Tags

CCSS.6.EE.B.7

9 increased by m is 15

• m + 15 = 9
• 9  + m = 15
• 9 x m = 15
• 9 + 15 = m

Tags

CCSS.6.EE.B.7

p minus 3 is 12

• 12 = p - 3
• p - 12 = 3
• p = 3 - 12
• p + 3 = 12

Tags

CCSS.6.EE.B.7

six times t is 42

• t/6 = 42
• 6t = 42
• 6 + t = 42
• 42 = 6 - t

Tags

CCSS.6.EE.B.7

n times the sum of 2 and 1 is 9

• 9 = 2n + n
• n + 2 + 1 = 9
• n(2 + 1) = 9
• n + 1 = 9

Tags

CCSS.HSA.CED.A.3