Parts of Equations

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

Which property of real numbers was used to get from Step 3 to Step 4?

• Addition Property of Equality

• Subtraction Property of Equality

• Additive Inverse Property

• Substitution Property

Identify the coefficient in the expression.
6y + 7

• 6y

• 7

• 6

• 1

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

What is the first step to solve
3(x - 2) = 18

• subtract x and 2

• distribute 3 to (x-2) using multiplication

• distribute 3 to x ONLY using multiplication

• subtract 18 on both sides

Which of the following is an EQUATION

• 3a² - 5a + 8

• 4a² + 7 = 31

• 2x + 9

• 7x + 10 > 52

7.25n + 24 = 390

is an ________________

• equation

• expression

• inequality

Given equation

y = 30x + 50

Which part is the

INITIAL VALUE?

• y

• 30

• x

• 50

Given equation

y = 30x + 50

Which part is the

TOTAL?

• y

• 30

• x

• 50

Given equation

y = 30x + 50

Which part is the

RATE?

• y

• 30

• x

• 50