and how do you work out 5-3(2x+1)?
6x-3(2x+8)? 8x-(2-x)?
2007-03-03 16:25:04 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
distributive property.
ex- 2(3-x)= 6-2x
2007-03-03 16:27:58 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Please Excuse My Dear Aunt Sally. It's the mnemonic for the order of operations. Do what's in the parentheses, then the exponents, then multiplication, division, addition, and subtration.
so for 5-3(2x+1) you first have to work out -3(2x+1)
= -6x -3 (distributive property)
Then add the 5 to that:
= -6x -3 +5
= 2 - 6x
2007-03-04 00:29:28 · answer #2 · answered by Kevin 3 · 0⤊ 0⤋
(x+1)-(1-x) = x+1-1+x = 2x
5-3(2x+1) = 5-(6x+3) = 2 - 6x
6x-3(2x+8) = 6x-(6x+24) = -24
8x-(2-x) = 8x-2+x = 9x - 2
2007-03-04 00:31:51 · answer #3 · answered by Ashley 2 · 0⤊ 0⤋
x + 1 - 1+ x =
x + x=
2x
5-6x-3=
2-6x
6x-6x-24=-24
8x-2+x=
9x-2
2007-03-04 00:31:14 · answer #4 · answered by desperatehw 7 · 0⤊ 0⤋
(x+1)-(1-x):
u distribute the negative to the second parenthesis
x+1-1+x:
then u simplify
2x is ur answer
5-3(2x+1):
distribute
5-6x-3:
simplify
2-6x
do the same with the rest of them :) GOOD LUCK!!!
2007-03-04 00:29:20 · answer #5 · answered by Pointe Your Toes! 3 · 0⤊ 0⤋