3(x-2)=5(x+1) Can you please send this one a.s.a.p? thanks for your help!!!
2007-12-10 02:57:41 · 6 answers · asked by bug 2 in Science & Mathematics ➔ Mathematics
-11/2
2007-12-10 03:02:55 · answer #1 · answered by 1,1,2,3,3,4, 5,5,6,6,6, 8,8,8,10 6 · 0⤊ 0⤋
Simplifying
3(x + -2) = 5(x + 1)
Reorder the terms:
3(-2 + x) = 5(x + 1)
(-2 * 3 + x * 3) = 5(x + 1)
(-6 + 3x) = 5(x + 1)
Reorder the terms:
-6 + 3x = 5(1 + x)
-6 + 3x = (1 * 5 + x * 5)
-6 + 3x = (5 + 5x)
Solving
-6 + 3x = 5 + 5x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-5x' to each side of the equation.
-6 + 3x + -5x = 5 + 5x + -5x
Combine like terms: 3x + -5x = -2x
-6 + -2x = 5 + 5x + -5x
Combine like terms: 5x + -5x = 0
-6 + -2x = 5 + 0
-6 + -2x = 5
Add '6' to each side of the equation.
-6 + 6 + -2x = 5 + 6
Combine like terms: -6 + 6 = 0
0 + -2x = 5 + 6
-2x = 5 + 6
Combine like terms: 5 + 6 = 11
-2x = 11
Divide each side by '-2'.
x = -5.5
Simplifying
x = -5.5
2007-12-10 03:56:36 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Expanding by distributing the 3 and 5:
3x - 6 = 5x + 5
Now, subtract 3x and 5 form both sides to get:
-11 = 2x
Divide by 2 to get:
-11/2 =x
As Required
2007-12-10 03:01:47 · answer #3 · answered by highschoolmathpreparation 3 · 0⤊ 0⤋
3(x-2)=5(x+1)
3x - 3*2 = 5x + 5*1
3x - 6 = 5x + 5
3x - 5x = 5 + 6
-2x = 11
2x = -11
x = -11/2
x = -5.5
Hope that helps
2007-12-10 03:01:14 · answer #4 · answered by gmat g 3 · 0⤊ 0⤋
3x-6 = 5x+5>>>= 2x = -11
x= -11/2
2007-12-10 03:01:00 · answer #5 · answered by iceman 7 · 0⤊ 0⤋
3(x-2)=5(x+1)
3x - 6 = 5x +5
3x -5x = 6+5
-2x = 11
x = -5.5
2007-12-10 03:04:21 · answer #6 · answered by Anonymous · 0⤊ 0⤋