Question 1

Simplify the expression by combining like terms: 3x+2y+6x

Accepted Answer

9x+2y

Answer

2(x+2y+3x)

Answer

3x+2y

Answer

11xy

Question 2

Simplify the expression by combining like terms: 4y+5y

Accepted Answer

$9y$

Answer

Cannot combine

Answer

$20y$

Answer

$9y^2$

Question 3

Solve the equation: y-7=12

Accepted Answer

y=19

Answer

y=(-5)

Answer

y=(-19)

Answer

y=5

Question 4

Solve the equation: -3b=21

Accepted Answer

b=(-7)

Answer

b=(-24)

Answer

b=24

Answer

b=7

Question 5

Solve the equation: w+2=12

Accepted Answer

w=10

Answer

w=24

Answer

w=(-10)

Answer

w=6

Question 6

Solve the equation: $ \frac{y}{2}=8$

Accepted Answer

y=16

Answer

y=6

Answer

y=10

Answer

y=4

Question 7

Operations that "undo" each other are called__________.

Accepted Answer

Inverse Operations

Answer

Variables

Answer

Isolate

Answer

Solutions

Question 8

Solve the equation: $2x+5=9$

Accepted Answer

x=2

Answer

x=16

Answer

x=12

Answer

x=47

Question 9

Solve the equation: $\frac{x}{5}+3=10$

Accepted Answer

x=35

Answer

x=(-35)

Answer

x=75

Answer

x=65

Question 10

Solve the equation: $-2n+4=28$

Accepted Answer

n=(-12)

Answer

n=22

Answer

n=12

Answer

n=10

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