Equation Solving

What is the first step to complete when solving this equation?
10 - 3y = 4

• Add 10
• Subtract 10
• Add 3
• Divide by -3

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

Tags

CCSS.HSA.REI.A.1

Find the error in the problem below
19 - 2k = 3k - 1
     +3k   +3k
19 + 1k = -1
-19           -19
k = -20

• They should have divided by 1 for the last step
• They should add 19 instead of subtracting 19
• I can not find an error
• Instead of adding 3k they should subtract 3k

3/8 d = 1/4

• 2/3
• - 2/3
• 1/3
• -1/3

Tags

CCSS.6.EE.B.7

x + ⅚ = ⅔

• x = -⅙
• x = ⅙
• x = 1½
• x = -1½

Tags

CCSS.6.EE.B.7

What is the first step when solving an equation?

• Isolate the variable
• Randomly guess and check
• Set up your workspace so you can stay organized
• IDK

Tags

CCSS.7.EE.B.4A

Using the "opposite operation" to "undo" and isolate the variable when solving an equation is more commonly called...

• Inverse operations
• math
• variable
• PEMDAS

Tags

CCSS.6.EE.B.7

Solve:
6(5x - 3) + 2 = 14

• 2
• .5
• -1
• 1

Tags

CCSS.7.EE.B.4A

Solve:
2(2x + 3) = -6(x + 9)

• 1.2
• 6
• -6
• 7.5

Tags

CCSS.6.EE.B.7

CCSS.6.EE.B.5

CCSS.6.EE.B.6

CCSS.6.EE.A.2

 Solve the equation for x.
1.6 + 0.4x = 3.4 - 0.2x 

• x = -3
• x = 3
• x = 0.3
• x = 1.8

Tags

CCSS.6.EE.B.7

CCSS.6.EE.B.5

CCSS.6.EE.B.6