Writing algebraic expressions
Write an expression for the product of - 3 and w.
What is - 3w?
27 + n
The sum of 27 and a number n.
Sarah has 5 fewer apples than twice the number of apples John has. Write an algebraic expression for the number of apples Sarah has if John has x apples.
2x - 5
3a-2 when a=-7
-23
Evaluate when p = 6. p + 9
What is 15?
Write an expression for w less than - 8.
What is - 8 - w?
-2x
Negative two times x
A submarine is at a depth of 120 meters below sea level. It descends another d meters. Write an expression for its new depth.
-120 - d
p/4 + 3 when p = - 24
-3
Evaluate the expression for 31 - g when g is 3.
What is 28?
Write an expression for the difference of twice p and negative 9.
What is 2p - (-9)?
q-(-13)
-13 less than q or q minus negative thirteen
If a number is increased by 8 and then multiplied by -2, write an expression for the result using n as the number.
-2 (n +8)
7(-n+4) when n=8
-28
Evaluate the expression for 4w when w is 13.
What is 52?
Twice the difference of 6 and x
2(6-x)
n/4 + (-9)
The quotient of a n and four added to negative nine
A diver is 30 meters below the surface and ascends n meters. Write an expression for the diver's new position relative to the surface.
- 30 + n
(- 30/b) + 9 when b = - 6
14
Evaluate the expression 2rz - 9 when r is 2 and z is 5.
What is 11?
Write an expression for the difference of r and 8 times - 9.
What is the difference of - 9(r - 8) or (r - 8) * - 9?
-5(3+x)-15
negative five times, three plus x in parentheses, minus fifteen
A video game player loses 7 points for each incorrect answer and gains 4 points for each correct answer. Write an expression for the total points after c correct and i incorrect answers.
4c - 7i
(-24/4 -c) * a when a= - 5 and c=1
35
Evaluate the expression 3(x + 4) - w, when x is 3 and w is 8.
What is 13?