Find the missing variable
x + 12 = 20
x = 8
5x + 8x - 2x
11x
You have (d) dollars, and spend $15
d - 15
A swallow is carrying c coconuts and drops 2.
c - 2
A letter used to represent an unknown number
Variable
4x = 48
x = 12
10y - 4y + 7
6y - 7
A pool has 2L of water and fills at 3L per minute (m).
2 + 3m
A swallow carrying a coconut can fly 12 meters per second (s)
12s
A number that stands alone and does not change.
Constant
2x + 7 = 19
x = 6
3 x (6y - 2y)
12y
Rorschach works at a bakery where he makes $23 per hour (h). Regardless of how many hours he works, he always gets a flat bonus of $5.
23h + 5
A coconut weighs w, however the swallow can only carry half that weight
w ÷ 2 or w/2 or 0.5w
The number that is multiplied by a variable.
Coefficient
x/5 - 3 = 7
x = 50
4 x 5y + 5y - 10
23y - 10
The length of a rug is 4cm less than double the width (w).
2w - 4
A swallow flies a distance of (m) meters per second. It flies for 10 seconds, then rests, then flies for another 5 seconds. Write an expression for the total distance.
10m + 5m OR 15m
An algebraic expression consisting of only one term.
Monomial
3x - 14 = 2x + 10
x = 24
10 x 2w + 6 x 3y - 5w + y
15w + 19y
Rorschach his friends (f) go to an amusement park. Tickets are $12 and they buy a $15 bucket of popcorn to share. They also used a coupon to that cut the price of everything in half. Equation must include the coupon somehow, you can't just skip 12 --> 6 and 15 --> 7.5
(12f + 15) ÷ 2
Two swallows are carrying 3 coconuts (c) tied together with a bit of string. Write an algebraic expression that shows how many coconuts one of the swallows is carrying. You can't include the number 1.5 in your equation.
3c ÷ 2 or 3c/2
A single number, variable, or product of both, separated by plus or minus signs.