3 (x-2) = -4 (x+8) + 10
2007-08-18 13:52:29 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
3(x-2)= -4(x+8)+10
or,3x-6= -4x-32+10
or,3x+4x= -32+10+6
or,7x= -16
or,x=-16/7= -2 2/7
2007-08-18 13:58:30 · answer #1 · answered by alpha 7 · 0⤊ 0⤋
3(x - 2) = - 4(x + 8) + 10
3x - 6 = - 4x - 32 + 10
3x + 4x = - 32 + 10 + 6
7x = - 16
x = - 16 / 7
x = - 2 2/7
Answer: x = - 2 2/7
Proof (substitute x with - 2 2/7):
3(- 2 2/7 - 2) = - 4(- 2 2/7 + 8) + 10
3( - 4 2/7) = - 4(5 5/7) + 10
3(- 30/7) = - 4(40/7) + 10
- 90/7 = - 160/7 + 70/7
- 90/7 = - 90/7
2007-08-22 20:05:02 · answer #2 · answered by Jun Agruda 7 · 3⤊ 0⤋
3 (x-2) = -4 (x+8) + 10 expand the brackets
3x-6= -4x-32+10
3x-6=-4x-22 simplifying
3x+4x=-22+6 group like terms
7x=-16 simplify
x=-16/7 divide by 7
2007-08-18 21:37:21 · answer #3 · answered by Andre S 1 · 0⤊ 0⤋
Hey there!
Here's the answer.
3(x-2)=-4(x+8)+10 --> Write the problem.
3x-6=-4(x+8)+10 --> Distribute 3 into x-2.
3x-6=-4x-32+10 --> Distribute -4 into x+8.
3x-6=-4x-22 --> Add -32 and 10.
7x-6=-22 --> Add 4x to both sides of the equation.
7x=-16 --> Add 6 to both sides of the equation.
x=-16/7 Divide 7 to both sides of the equation.
So the answer is x=-16/7.
Hope it helps!
2007-08-18 21:38:13 · answer #4 · answered by ? 6 · 0⤊ 0⤋
3(x-2)=-4(x+8)+10
3x-6= -4x-32+10
3x+4x= -32+10+6
7x=-16
x= -16/7
2007-08-18 20:59:28 · answer #5 · answered by Grampedo 7 · 0⤊ 0⤋
3x - 6 = - 4x - 32 + 10
7x = 16 - 32
7x = - 16
x = - 16 / 7
2007-08-22 04:19:57 · answer #6 · answered by Como 7 · 0⤊ 0⤋
3x-6=-4x-32+10
3x+4x=-32+10+6
7x=-16
x=-16/7
2007-08-18 20:57:58 · answer #7 · answered by Anonymous · 0⤊ 0⤋
3x-6=-4x-32+10
7x=-16
x=-16/7
2007-08-18 20:56:20 · answer #8 · answered by de4th 4 · 0⤊ 0⤋
3x-6=-4x-32+10
7x-6=-22
7x=16
x=2.286
2007-08-18 20:58:35 · answer #9 · answered by Too many years without the Cup 2 · 0⤊ 0⤋