17-(2x-5)=24-3(x+1)
3(6x-1)=8(5x-10)
2007-01-12 08:41:07 · 5 answers · asked by Countess Blavinskeya 2 in Science & Mathematics ➔ Mathematics
they are both different questions
2007-01-12 08:53:23 · update #1
x=76/23-- this is the answer if the 2 quations are a system of equations
u do this by setting both functions to zero and setting them equal to each other
if not then do this:
17 - (2x - 5) = 24 - 3(x + 1)
First thing you do is expand the brackets. Note that the minus sign outside of the brackets means that it gets distributed to BOTH terms. Also, for the second set of brackets, the -3 is what get distributed. Therefore,
17 - 2x + 5 = 24 - 3x - 3
Group like terms,
22 - 2x = 21 - 3x
Move all terms with x on the left hand side, and everything else on the right hand side. The -3x will become +3x, and the +22 will become -22.
-2x + 3x = 21 - 22
x = -1
2) 3(6x - 1) = 8(5x - 10)
Expand.
18x - 3 = 40x - 80
Group x terms
18x - 40x = 3 - 80
Simplify.
-22x = -77
x = -77/-22 = 7/2
2007-01-12 08:46:57 · answer #1 · answered by Anonymous · 0⤊ 0⤋
17 - (2x - 5) = 24 - 3(x + 1)
First thing you do is expand the brackets. Note that the minus sign outside of the brackets means that it gets distributed to BOTH terms. Also, for the second set of brackets, the -3 is what get distributed. Therefore,
17 - 2x + 5 = 24 - 3x - 3
Group like terms,
22 - 2x = 21 - 3x
Move all terms with x on the left hand side, and everything else on the right hand side. The -3x will become +3x, and the +22 will become -22.
-2x + 3x = 21 - 22
x = -1
2) 3(6x - 1) = 8(5x - 10)
Expand.
18x - 3 = 40x - 80
Group x terms
18x - 40x = 3 - 80
Simplify.
-22x = -77
x = -77/-22 = 7/2
2007-01-12 16:47:11 · answer #2 · answered by Puggy 7 · 0⤊ 0⤋
17 – (2x-5) = 24-3(x+1)
17-2x+5=24-3x-3
22-2x=21-3x
3x-2x=21-22
X=-1
3(6x-1)=8(5x-10)
18x-3=40x-80
80-3=40x-18x
77=32x
X=77/32=2.406
2007-01-12 16:53:29 · answer #3 · answered by petep73 3 · 0⤊ 0⤋
17-2x+5=24-3x-3
3x-2x = 24-3 -17-5
x=-1
you do the second.
2007-01-12 16:46:28 · answer #4 · answered by Anonymous · 0⤊ 0⤋
1. X = 15
sorry number 2 was too hard
2007-01-12 16:50:28 · answer #5 · answered by Lessthanthreeyou 2 · 0⤊ 0⤋