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A number increased by 7.
x+7
What operation does "decreased by" represent?
Subtraction (−)
4x+3+2x+7
6x+10
What is the value of x in the equation?
5x+8=43
7
What percentage of 200 is 50?
25%
Five times a number.
5x
What operation does "product" represent?
Multiplication (×)
5(x-2)+3(x+4)
8x+2
What is the value of x?
x/4+6=15
36
What percentage of 180 is 90?
50%
Twelve less than a number is 19.
x-12=19
3(2x-4)+5x
11x-12
-3(2x-4)+5(x-6)-2(3x+1)
-7x-20
x2/16+25
20
If 4x − 28 = −24, what is the value of x − 7
A) −24
B) −22
C) −6
D) −1
C) -6
A movie ticket costs $12. Write an expression for x tickets plus a $5 fee
12x+5
6 less than twice a number," which two operations are used?
Multiplication and subtraction
k2 − 53 = 91 What is the positive solution to the given equation?
A) 144
B) 72
C) 38
D) 12
D) 12
3(x+4)=2x+25
13
The function f is defined by f(x) = 4x − 3. What is the value of f(10) ?
A) −30
B) 37
C) 40
D) 43
B) 37
10 more than 6 times a number x is 47
6x + 10 = 47
9 decreased by the product of 4 and a number
9-4x
-4(3x-2y)+2(5x+3y)-3(x-y)
-5x+17y
If 6n = 12, what is the value of n + 4 ?
6
s + 7r = 27
r = 3
What is the solution (r, s) to the given system of equations?
(3,6)
r=3
s=6