x/2 = 10 - x
2 (x - 5) + 3 (x - 2) = 6
x/3 - x/6 = 5 - x
2006-09-07 20:30:18 · 9 answers · asked by mary 1 in Education & Reference ➔ Homework Help
x/2 = 10 - x
Multiply both sides by 2...
x = 20 - 2x
Add the 2x to the left side to isolate the "x" variable
3x = 20
solve for x
x = 20/3 (which is about 6.67)
2(x - 5) + 3(x - 2) = 6
Multiply the coefficients 2 and 3 through the paren's
2x - 10 + 3x - 6 = 6
combine everything that is the same
5x - 16 = 6
add 16 to both sides
5x = 22
solve
x = 22/5 (I'm doing this in my head but I think it's 4.4)
x/3 - x/6 = 5 - x
find a common denominator (which is 6)
2x/6 - x/6 = 5 - x
combine the left side
x/6 = 5 - x
multiply both sides by 6
x = 30 - 6x
add 6x to both sides to isolate the x variable
7x = 30
solve
x = 30/7 (I don't know this one in my head, but it's like 4.29 or 4.28)
2006-09-07 20:35:30 · answer #1 · answered by ? 3 · 0⤊ 0⤋
5
2006-09-08 03:36:06 · answer #2 · answered by john_0502000 3 · 0⤊ 0⤋
1. x/2 = 10 -x
3/2x=10
x=6.67
2. 2(x-5) + 3 (x-2) = 6
2x-10+3x-6=6
5x=22
x=4.4
3. x/3 - x/6 = 5 - x
x/6 + 2x/6 = 5 - x
7x = 30
x=4.28
I hope it helps
2006-09-08 03:42:57 · answer #3 · answered by kurakure 3 · 0⤊ 0⤋
1.=20-2x
3x=20
x=20/3
2. 2x-10+3x-6=6
5x=6+6+10
5x=22
x=22/5
3. 2x-x=30-6x
7x=30
x=30/7
2006-09-08 09:29:10 · answer #4 · answered by baby 3 · 0⤊ 0⤋
x=20/3
x=22/5
x=30/7
2006-09-08 03:36:42 · answer #5 · answered by Kim H 2 · 0⤊ 0⤋
i assume you want us to solve for x
x=20/3
x=22/5
x=30/7
2006-09-08 03:33:29 · answer #6 · answered by RichUnclePennybags 4 · 0⤊ 0⤋
3x/2=10
x=20/3
2x-10+3x-6=6
5x=22
x=22/5
7x/6=5
x=30/7
2006-09-08 03:33:32 · answer #7 · answered by dan 4 · 0⤊ 0⤋
x/2=10-x
x=20-2x
x+2x=20
3x=20
x=20/3=6,66
2(x-5)+3(x-2)=6
2x-10+3x-6=6
5x=6+10+6
x=22/5=4,4
x/3-x/6=5-x
3 (x/3-x/6)=3(5-x)
x-0.5x=15-3x
0.5x+3x=15
3.5x=15....x=4,28
2006-09-08 03:52:09 · answer #8 · answered by Christos A 1 · 0⤊ 0⤋
no
2006-09-08 03:32:01 · answer #9 · answered by frida_pie 3 · 0⤊ 0⤋