7th 7-2A Equations with Variables on Both Sides

What is the next step you should take?

14x + 8 = -3 - 7x

• add 7x to both sides

• multiply -7 to both sides

• add 14x to both sides

• subtract 7x to both sides

Solve for x:

2x - 5 = 3x + 4

• x = 6

• x = -9

• x = -18/13

• x = 10/3

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.A.2

5w + 5 = 8w - 10

• -5

• -2

• 2

• 5

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.B.7

10x + 9 = 4x - 9

• 0
• 3
• -3
• -18

Tags

CCSS.6.EE.B.5

CCSS.6.EE.B.6

6.4n - 10 = 4.4n + 6

• n = 6

• n = 7

• n = 8

• n = 5

 $\frac{1}{3}k+80=\frac{1}{2}k+120$ 

• k = 240

• k = -240

• k = 6.66

• k = -6.66

150 - x - 2x = 120 + 2x

• 30

• 6

• -6

• -30

5x + 4x - 59 = 43 - 8x

• x = 6

• x = -6

• x = 102

• x = -102

Jim currently has​ $1,250 in his bank account and Sally has​ $1,400 in her bank account. Jim deposits​ $27.50 per week and Sally deposits​ $20 per week into her account. After how many weeks will they have the same amount of​ money?

• 20 weeks

• 21 weeks

• 22 weeks

• 23 weeks

Tags

CCSS.8.EE.C.8C

The price of Stock A at 9 A.M. was​ $15.75. Since​ then, the price has been increasing at the rate of​ $0.05 per hour. At​ 9am, the price of Stock B was​ $16.47. It begins to decrease at a rate of​ $0.13 per hour. If the stocks continue to increase and decrease at the same​ rates, in how many hours will the prices of the stocks be the​ same?

• 2 hours

• 3 hours

• 4 hours

• 5 hours

Tags

CCSS.8.EE.C.8C