Question
Solve the inequality
u<0
Alternative Form
u∈(−∞,0)
Evaluate
−u×10<−2u×9
Use the commutative property to reorder the terms
−10u<−2u×9
Multiply the terms
−10u<−18u
Add or subtract both sides
−10u−(−18u)<0
Subtract the terms
More Steps

Evaluate
−10u−(−18u)
Collect like terms by calculating the sum or difference of their coefficients
(−10−(−18))u
Subtract the terms
More Steps

Evaluate
−10−(−18)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
−10+18
Add the numbers
8
8u
8u<0
Solution
u<0
Alternative Form
u∈(−∞,0)
Show Solution
