Homework Help: Math

Posted by Ellie on Sunday, November 23, 2008 at 9:14pm.

Ok we are doing distributive property in math and I'm so confused on some of the problems. the problems are:

9+(x-4)
5-4x-5/-4
4(3x-2y)-3(4x-3y)
7(r+s)-(r-s)
3y-2(x-2y)

Thank you so much for your help.

Ellie

Math - drwls, Monday, November 24, 2008 at 3:55am
Multiply each term in parentheses by the coefficient in front of it, and then combine constants and "x" and "y" terms separately

For example,
9 + x - 4 = x + 5
(You don't even have to do a distributive multiplication on that one)

3y -2(x-2y) = 3y - 2x + 4y = 7y - 2x

You try the others.

Your second expression needs parentheses to show us what the mumerator is.

Answer this Question

Related Questions

Pre-algebra - Could someone please help me solve the following problems, and ...
Pre-algebra - I have some practice problems, and I need to have them worked out...
Pre-algebra - I have some practice problems, and I need to have them worked out...
math - sums and differences of rational algebraic expression please answer the ...
math - if you simplify the expression 3x+4(x-2)-3x into the expression 3x+ 4x -8...
bobpursley,math - about this problem , I figured it out and i did get the answer...
algebra - I'm really confused on substitution. My teacher has a terrible ...
Math - Is this right I have to set it to y=? 3x-y=9: y=-9+3x How would you set ...
math - what would x^2+y^2-4x+2y=0 (Equation for a cirlce) be in r^2=(x-h)^2(y-k...
math,bobpursly, - 4x-2x^2+4x^3 from 4x^3+x-3x^2 4x^3+x-3x^2 -( 4x-2x^2+4x^3) ...

For Further Reading

First Name:
School Subject:
Answer: