What makes this true?
4x = 4
x = 1
x + 4 = 3x
x = 2
Solve for x
g = wx
x = g/w
9x - 7 = -6
add seven to both sides
The amount of money I went home with when I earn $2 per hot dot and I sold 9 hot dogs.
$18
-3 + x = 7
x = 10
x = 5x - 16
x = 4
Solve for x
z = m + x
x = z + m
8 = 10 - 7x
subtract ten to both sides
The amount of hot dogs I sold when I earn $4 per hot dog and the amount of money I went home with was $64.
16 hot dogs
-15 = -4x + 5
x = 5
-2x = x - 7 - 8
x = 5
Solve for x
u = x - k
x = u + k
-4 = x/20 - 5
add five to both sides
The amount of hot dogs I sold when I earned $3 per hot dog, paid a $20 vendor fee, and went home with $4.
8 hot dogs
-9x - 13 = -103
x = 10
-16 + 3x = -8 - 5x
x = 1
Solve for x
a = b - x
2(x + 5) = 10
divide both sides by 2
or
multiply 2 to everything inside the parenthesis
The amount of money I went home with when I lost $5 per hot dog, was given $74 to be there, and sold 24 hot dogs.
$46
-10 = 10(x - 9)
x = 8
4x - 1 = 6x + 8 -8x +15
x = 4
Solve for x
g = cx - b
x = (g + b)/c
-1 = (5+x) / 6
multiply 6 to both sides
or
divide everything in the parenthesis by 6
The amount of hot dogs I sold when I earned $4 per hot dog, paid $55 for the table, and went home with $25.
20 hot dogs