20 - 7(3u + 8) + (-8u)
2007-10-15 08:05:49 · 8 answers · asked by ME 2 in Science & Mathematics ➔ Mathematics
20 - 21u - 56 - 8u
-36 - 29u
2007-10-15 08:09:39 · answer #1 · answered by shaneallen04 3 · 0⤊ 0⤋
This is how you do it
20 - 7(3u+8) + (-8u)
20 - 21u - 56 - 8u - multiply the brackets out
- 36 - 29u - add everything together.
2007-10-15 15:12:43 · answer #2 · answered by jlao04 3 · 0⤊ 0⤋
20-7(3u+8)+(-8u)
=20 -21u-56-8u First, distribute
= -36-29u Now, combine like terms
2007-10-15 15:14:20 · answer #3 · answered by kriskris 2 · 0⤊ 0⤋
20 - 7(3u + 8) + (-8u)=0
20-21u-56-8u=0
-36-29u=0
-29u=36
u=-36/29
2007-10-15 15:14:04 · answer #4 · answered by Siva 5 · 0⤊ 1⤋
20 - 21u - 56 - 8u
- 29u - 36
2007-10-15 17:58:21 · answer #5 · answered by Como 7 · 0⤊ 0⤋
20 - 21u - 56 - 8u
(20 - 56) + (-21u - 8u)
-36 - 29u (simplified answer)
2007-10-15 15:11:45 · answer #6 · answered by Anonymous · 0⤊ 0⤋
20-21u-56-8u=0
20-29u-56=0
20-56= 29u
-36=29u
u= -36/29
2007-10-15 15:12:45 · answer #7 · answered by vasu 1 · 0⤊ 1⤋
PEMDAS
Parentheses
exponents
multiply
divide
add sudtract
In order left to right.
2007-10-15 15:10:55 · answer #8 · answered by CB 3 · 0⤊ 0⤋