Algebraic Equations
10 subtracted from 4 times a number, m.
4m - 10
Shelby has 'd' sweets and gave her friend 10. Write an expression to represent the amount of sweets she has left.
d - 10
a * b = 2a - b, evaluate 2 * 1
2 * 1 = 3
What is the sum of -8 and 5?
-3
If a = 9, find find the value of 3a
27
x + 4 = 20
16
5y2 - 7y2 + 1
-2y2 + 1
m @ n = m2 + 2n, find the value of 3 @ 2
3 @ 2 = 13
What is the difference between -10 and -2?
-12
2
3(y - 4) = 15
x = 9
y − 4m − 3y − 5m
-2y - 9m
x ^ y = 2x2 + y2, find -2 ^ -4
-2 ^ -4 = 24
(-2)3 + (-2) =
-10
If m = 5 and n = 2, find the value of 2m+ 3n
16
3x/5 = 30
x = 50
A rectangle is (3a - 4)m wide and 5m long. Write an expression to represent its perimeter.
(15a - 20)m
a * b = (ab)/(a + b), find -3 * 4
-3 * 4 = -12
Evaluate: 5 - (-3 x 4) + 12
5
If a = 3 and b = 6, find the value of 2b2 - 4a
60
A rectangle has a length of (4x)m and width of 3m. Calculate its perimeter and area.
Perimeter = (8x + 6)m & Area = 12x m2
8(x + 2) - 3(x - 2)
5x + 22
j ^ k = xy2, find 3 ^ 5 and determine if the operation ^ is commutative.
3 ^ 5 = 75 and 5 ^ 3 = 45 therefore, the operation ^ is not commutative.
Evaluate: (-15 x -3)/5 - 7
2
If g = -2 and h = -3, find the value of 3gh - 4h
30