SOLUTION: simplify 1. 2z+1/3z-z-6/5z solve 1. 5b^2-15b=0

Question 174203: simplify
1. 2z+1/3z-z-6/5z
solve
1. 5b^2-15b=0

Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
# 1

Problem:

simplify
1. 2z+1/3z-z-6/5z

Solution:

Start with the given expression.

Multiply the 1st fraction by

Combine the fractions.

Distribute

Multiply

Multiply the 2nd fraction by

Combine the fractions.

Distribute.

Multiply.

Now that the fractions have equal denominators, we can combine them:

Combine the fractions.

Distribute

Combine like terms.

So simplifies to

In other words, where

# 2

Problem:

solve
1. 5b^2-15b=0

Solution:

Start with the given equation

Factor out the GCF 5b

Now set each factor equal to zero:

or

or Now solve for b in each case

So our answers are

or
RELATED QUESTIONS
Perform the indicated operations and simplify the following expressions: 2z-1/z^2+z-6 -... (answered by mananth)

(3/(2z+1))-(z/(z-2))=((-3z^2+2z=58)/(2z^2-3z-2)) (answered by jsmallt9)

3z^-7+4z^-6+6z^-5+5z^-4+4z^-3+3z^-2+z^-1 (answered by Fombitz)

Solve the system: x - y + 3z = 23/2 3x + 2y + 2z = -6 2x - z =... (answered by ronak_hahs)

z/z +3 = 3z/5z -... (answered by solver91311)

z/z +3 = 3z/5z -... (answered by HyperBrain)

2x-y-3z=1, 4x+3y+2z=-4, -3x+2y+5z=-3 solve for x,y, and... (answered by Fombitz)

solve the inequality. thanks!... (answered by praseenakos@yahoo.com)

solve the inequality. thanks!... (answered by tanimachatterjee)