Equations
x – 7x + 4 = 11
x = -1 1/6
6(2x - 4) + 20 > 8
x > 1
Sam has $1,850 in her savings account and add $25 per month. Diego has $2,000 in his account and adds $20 per month. After how many months will they have the same amount in their accounts?
30 months
Solve for A:
abcd = e
a = e/bcd
What property does this represent:
a + b = b + a
Commutative Property
12 + r – 2(r+ 1) = 3
r = 7
3 > 5r – 7(r + 1)
r > -5 or -5 < r
A sign making company, Signs-R-We, charges a set up art fee of $50 plus an additional $1.50 for each sign printed. Their competitor, Sign-Me-Up waives the art fee but charges $3.50 per sign. What is the largest number of signs you could print so that Sign-Me-Up would be a better deal than Signs-R-We?
24 or less
x - 2y = 9
x = 9 + 2y
Factor out the greatest term:
6a^2bc^4 - 8ab^3c^5
2abc^4(3a - 4b^2c)
-110x + 2 = -7x + 61
x = -.6
-2(a - 10) < 6(a-2)
a>-4
Brandon is 10 years older than Brian. In 2 years, Brandon will be 3 times as old as Brian. How old are they now?
Brandon is 13 and Brian is 3
Solve for y:
4x + 2y = 12
y = -2x + 6
Solve for x:
abs(x-2) = 3
x = 5 or -1
8 - 2(2x - 3) = 11 - 4x + 3
All Real Numbers
-1/6 + 2/3x<3/4x+7
x > -86
Seven times a number increased by 3 is the same as half the same number increased by 16. Find the number.
2
solve for b:
m/b = s
m/s = b
solve the compound inequality:
2 < 2(x-3) < 10
4 < x < 8
4x - 3 = 4(x - 0.75) - 1.2
no solution
21x + 4 - 3(5x + 2) < 6x + 2
All real numbers
The perimeter of a rectangle is 26 inches. The length is 3 inches longer than the width. Find the dimensions of the rectangle.
Width is 5 inches and length is 8 inches
solve for r:
r2 + v = h
r = sqrt(h-v)
solve for x:
abs(10+4x) < 14
-6 < x < 1