4x = 20
x = 5
3x + 2 = 2x - 2
x = -4
How many solutions?
1 = 1
Infinite
x2 = 100
x = 10 and x = -10
Simplify √40.
2√10
x / 5 = 10
x = 50
8x + 3 = 5x + 39
x = 12
How many solutions? (If one, what is the solution?)
45 = 5(3x - 6)
One
x = 5
x3 + 8 = 72
x = 8
Simplify ∛375.
5∛3
2x + 9 = 45
3(x + 2) = 4(x + 1)
x = 2
How many solutions? (If one, what is the solution?)
6x - 3 + 2x = 8x + 7 - 10
Infinite
-3 = -3
-13 + 8x3 = -77
x = -2
x3 + 80 = 766
x = 7∛2
5(x + 7) = 60
x = 5
-180 + 2(x - 10) + 18x = 5(x - 1)
x = 13
How many solutions? (If one, what is the solution?)
-0.2x + 1.4x - 3 = x + 1.2x + 0.6
x = -3.6
80 - x2 = x2 - 208
x = 12 and x = -12
2(-x2 - 12.5) = -281
x = 8√2 and x = -8√2
-15 + 4(x + 11) - 24 = 61
x = 14
2x - (8x - 3) = -3(5 + x)
x = 6
Write a number in the blanks to create an equation that has infinite solutions.
5(2x + 9) - 3 = __x + __
10x + 42
x = 2 and x = -2
A cube has a volume of 448 in3.
What is the side length of the cube?
4∛7 in