Day 3: Multi-Step Equations

Solve:

6(3a +1) - 30 = 3(2a - 4)

• a = 1/2

• a = 1

• a = 12

• a = -1

Tags

CCSS.8.EE.C.7B

Solve:

2(4x - 4) - 6 = -2(2x - 5)

• x = 8

• x = 16

• x = 24

• x = 2

Solve:

6x + 10 = 2(3x + 4)

• x = 0

• x = 2

• No solution

• Infinite solutions

Tags

CCSS.8.EE.C.7A

Solve:
 $2(4x-3)-8=4(1+.5x)$  

• x = 5

• x = 3

• x = 1

• x = 2

Solve:
 $5(2x-1)=-5+10x$  

• x = 5

• x = 0

• all real numbers

• no solution

Tags

CCSS.8.EE.C.7A

Solve:

 $-6\left(x-\frac{10}{3}\right)=-2x+4(1−3x)$  

• x = 4

• x = -2

• x = 2

• x = 5

Tags

CCSS.8.EE.C.7B

Solve:

 $3(1−3x)=2(−4x+7)$  

• x = 2

• x = 6

• x = -11

• x = -5

Solve:  

 $4(x+2)+5x=-2+5(x+4)$  

• x = 2.8

• x = 2.5

• x = 1.5

• x = 3.8

Solve:

 $3+12(3x+2)=9(x-3)$  

• x = -20

• x = -13

• x = -2

• x = -18

Solve:

 $-6\ +5x\ -8=\frac{1}{2}\left(16x+2\right)+3$   

• 10/3

• -6

• -18/13

• 6