Chapter 7 Algebraic Expression

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Simplify the expression 7x+8-12x+6-2.

-5x+12

Evaluate the algebraic expression 2(7x+9)+(4+3x) if x=5.

107

What is the coefficient in the expression 108x+90 ?

108

Which expression is equivalent to 3+x+x+x+x+x+4+5x ?

10x+7

Evaluate the expression 3x+7-x when x=4.

15

How many like terms are in the expression 4x+1+6x+2?

2

Simplify. 27-2x+9+5x-x

2x+36

Find the coefficient in the expression 3x+27.

3

Evaluate the expression 7x+6-11+x-8 if x=6

35

Evaluate the expression 3x-15+7y-y if x=9 and y=4

36

Find the expression that is equivalent to 2x+2x

4x

Simplify. 5+3x-4+x

4x+1

Evaluate the expression 11x-4x+2 when x=7.

51

Evaluate the algebraic expression by substituting 8 for the variable x in the equation 3x+6x-13.

59

Simplify. x+x+x+x+x+x+10

6x+10

What is the coefficient in the expression 7x+45-2?

7

What is the coefficient in the expression 7z+6?

7

Simplify. 13x+4-6x

7x+4

Simplify. 2x+5x-3

7x-3

What is the variable in the algebraic expression 6+7x+4x+7?

x

What is the variable in the equation 6+6x-12?

x

Simplify. 3x-2x+7

x+7

Evaluate the expression 3(x+7)+6(x+9-5) when x=4.

81

Solve the algebraic expression 12x+10+x+13 if you substitute 5 for x.

88

Evaluate 5+9x-4 if x=10.

91


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