Grade 8 Multi-step Equations

-(1 - 3a) - 5 = 8a + 9

• 11

• -3

• -14

• 15

-16 + 7n + n = 8n + 4n

• -4

• -14

• -16

• 11

4n - 2 = -2 + 8n

• 0

• -8

• 1

• -6

-4(3x + 2) = 3(-4x + 5)

• No Solution

• One Solution

• Infinite Solution

How many solutions does this equation have?

4y + 5 = 4y - 7

• One Solution

• No Solution

• Many Solutions

How Many Solutions Does

This Equation Have?

8x + 5 = 10x + 5 − 2x

• One Solution

• No Solution

• Infinitely Many Solutions

solve for m

• -2/3
• -3/2
• -20/9
• 11/12

What mistake did Derrick make?

• Using distributive property to multiply 2 times (3 – 10x)

• Adding 20x to both sides

• Adding 2 to both sides

• 4 divided by 24 does not equal 1/6

How many solutions does the equation below have?
6(3a +1) - 30 = 3(2a - 4)

• Identity
• No Solution
• Three Solutions
• One Solution

Is the solution below correct?
5d = 2d - 18
-2d   -2d
3d = -18
d = 6

• Yes
• No