Set Up Equation

What equation would you use to solve for x?

• x+5 = 2x+10

• x + 5 + 2x + 10 = 33

• x + 5 = 33

• 2x + 10 = 33

Answer explanation

Yes! You must add both segments together and set that equal to the entire length to find x.

Tags

CCSS.4.MD.A.2

Write an equation that could be used to relate the lengths shown.

• 4 + 3x + 2 = 7x - 2

• 7x - 2 + 4 = 3x + 2

• 7x - 2 + 3x + 2 = 4

What equation would you use to find the value of x?

• 2x - 6 + 18 = x + 45

• 2x - 6 + x + 45 = 18

• 2x - 6 = x + 45

• x + 45 + 18 = 2x - 6

What equation would you use to find the value of x?

• 2x-4+2x=8

• 2x-4=2x

• 2x-4+8=2x

• 2x-4=2x+8

Tags

CCSS.4.MD.A.2

Determine the values of x and y that satisfy the equations: 7x - 2y = 5 and 3x + 4y = 11

• x = 4, y = 3

• x = 2, y = 4

• x = 3, y = 2

• x = 5, y = 1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Determine the values of x and y that satisfy the equations: 7x - 2y = 5 and 3x + 4y = 11

• x = 4, y = 3

• x = 2, y = 4

• x = 3, y = 2

• x = 5, y = 1

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Determine the values of x and y that satisfy the equations: 6x + 2y = 14 and 3x - 5y = 1

• x = 3, y = 4

• x = 2, y = 5

• x = 1, y = 7

• x = 5, y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Determine the values of x and y that satisfy the equations: 6x + 2y = 14 and 3x - 5y = 1

• x = 3, y = 4

• x = 2, y = 5

• x = 1, y = 7

• x = 5, y = 2

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Write an equation that correctly models the lengths shown.

• 2x + 20 + x + 21 = 9

• 2x + 20 + 9 = x + 21

• 9 + x + 21 = 2x + 20

• 2x + 20 - 9 = x + 21

Tags

CCSS.4.MD.A.2

What is the equation that you would use to find x?

• x+12+16+x=20

• x+12=16+x

• x+12=16+x+20

• 16+x=x+12+20