Evaluating Expressions
2x where x is 5
10
Simplify the expression.
3x + 5x -30
8x-30
Write an expression "three less than a number d"
d - 3
solve for n
3n=39
n = 13
Opposite operation is called the _______ operation.
Inverse
6 + x where x is 10
16
Simply the expression
3x + 5 +1 - 2x + 1x
2x + 6
One pound of limes cost $1.79. How much does p pounds of limes cost?
1.79p
Solve for x
8x + 4 = 44
x = 5
Solve for x in this equation
5x = 25
x = 5
50/x
where x is 2
25
How would you simplify the expression below?
2(x + 6)
2x+12
the quotient of n and 2 = 7
n/2 = 7
Solve the equation:
13 = 3h + 4
h = 3
evaluate 53
125
x4 when x =2
16
simplify the expression
3n3 + 4n3 - 2n2 + n
7n3 - 2n2 + n
the difference of y and 3 is 16
y - 3 = 16
Identify the independent and dependent variables
p = 10.50h
The above equation gives the amount p (in dollars) of pay a cashier makes for working h hours
independent variable: h
dependent variable: p
Write an inequality for this situation.
Alice drove no more than 75 miles in one day.
a ≤ 75
Evaluate 5² + 30 ÷ 5
31
simplify using the distributive property
6(4a - 5b)
24a - 30b
An afterschool program requires students to be at least 10 years old to participate. Write an inequality to describes this.
a ≥ 10
Mike chops wood for 90 minutes on Friday. He chops for x more minutes on Saturday. Write an equation that represents the total number of minutes, y Mike chops wood on Saturday.
y = x + 90
Evaluate
125 - 6² ÷ 6 + 4
123