1.5(2-x)+7x= -3 (x+5)
2. 2/3 (18x-12) = 7-3(x-3)
good luck
=]
2006-10-11 16:17:18 · 4 answers · asked by NABEELiOS 1 in Science & Mathematics ➔ Mathematics
1. 10-5x+7x=-3x-15
10+2x=-3x-15
25=-5x
x=-5
2. 12x-8=7-3x+9
15x=24
x=24/15
x=8/5
2006-10-11 16:22:18 · answer #1 · answered by themuffinking01 2 · 1⤊ 0⤋
is this a trick question?
1-
5(2-x)+7x=-3(x+5)
10-5x+7x= -3x +15
10 +2x +3x -15 = 0
5x + 25 = 0
x +5 = 0
x = -5
2-
2/3(18x -12) =7 -3(x -3)
36x/3 -24/3 = 7 -3x +9
12x - 8 -7 +3x -9 = 0
15x -24 =0
5x -8 = 0
x =8/5
2006-10-11 23:29:23 · answer #2 · answered by smarties 6 · 0⤊ 0⤋
I know for sure good luck is not going to solve this equation.
2006-10-11 23:19:38 · answer #3 · answered by !~bela 2 · 0⤊ 2⤋
1st eq -5
2nd eq 1.6
TI-89 calc does it all for you...go buy one
2006-10-11 23:24:13 · answer #4 · answered by Biggy 2 · 0⤊ 0⤋