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Mathematics

7th Grade

Used 5+ times

Understanding Expressions and Equations
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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which of the following is an expression?

2x+5=92x + 5 = 9

3y−43y - 4

x=7x = 7

y+2=10y + 2 = 10

2.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which of the following is an equation?

5x+25x + 2

x2−3x^2 - 3

4y=124y = 12

7+z7 + z

3.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which of the following best defines a variable?

A number that does not change

A letter that represents an unknown value

The number in front of a variable

A mathematical sentence with an equal sign

4.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

In the expression 7x+37x + 3 , what is the variable?

77

xx

33

7x7x

5.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which of the following is a constant in the expression 4a+94a + 9 ?

44

aa

99

4a4a

6.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

What is the coefficient of yy in the term −8y-8y ?

−8-8

yy

88

−1-1

7.

MULTIPLE CHOICE QUESTION

1 min • 3 pts

Which pair of terms are "like terms"?

2x2x and 3y3y

5a5a and 7a7a

4b4b and 44

x2x^2 and xx

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