Algebra
Calculus
Trigonometry
Matrix
Question
Simplify the expression
−5b+8
Evaluate
4b−(9b−8)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
4b−9b+8
Solution
More Steps
Evaluate
4b−9b
Collect like terms by calculating the sum or difference of their coefficients
(4−9)b
Subtract the numbers
−5b
−5b+8
Show Solution
Find the roots
b=58
Alternative Form
b=1.6
Evaluate
4b−(9b−8)
To find the roots of the expression,set the expression equal to 0
4b−(9b−8)=0
Subtract the terms
More Steps
Simplify
4b−(9b−8)
If a negative sign or a subtraction symbol appears outside parentheses, remove the parentheses and change the sign of every term within the parentheses
4b−9b+8
Subtract the terms
More Steps
Evaluate
4b−9b
Collect like terms by calculating the sum or difference of their coefficients
(4−9)b
Subtract the numbers
−5b
−5b+8
−5b+8=0
Move the constant to the right-hand side and change its sign
−5b=0−8
Removing 0 doesn't change the value,so remove it from the expression
−5b=−8
Change the signs on both sides of the equation
5b=8
Divide both sides
55b=58
Solution
b=58
Alternative Form
b=1.6
Show Solution