2007-05-25 05:39:41 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
5x+5(3x-4) = 3+2(-3x+6)
5x+15x-20 = 3+-6x+12
20x-20 = 15-6x
+20 to both sides
20x = 35-6x
+6x from both sides
26x=35
Divide both sides by 26
x= 35/26
Remember this:
-Simplify both sides
-Move constants to one side, variables and their coefficients to another
-Isolate x
vioula! :)
2007-05-25 05:50:38 · answer #1 · answered by Peter 2 · 0⤊ 0⤋
5x+5(3x-4) = 3+2(-3x+6)
5x+15x-20 = 3-6x+12
20x-20 = 15-6x
20x+6x = 15+20
26x = 35
26x/26 = 35/26
x = 35/26
2007-05-25 13:08:17 · answer #2 · answered by Leanne_27 2 · 0⤊ 0⤋
5x + 5 (3x - 4) = 3 + 2 (-3x + 6)
5x + 15x -20 = 3 - 6x + 12
20x - 20 = -6x + 15
20x + 6x = 15 + 20
26x = 35
x = 35 / 26
2007-05-25 12:52:32 · answer #3 · answered by muhamed a 4 · 0⤊ 0⤋
1. Distributive property
2. Combine like terms
3. Subtract an x term from both sides
4. subtract other like terms
5. divide
5x+5(3x-4)=3+2(-3x+6)
5x +15x-20=3-6x+12
20x-20=-6x+15
+6x-20=+6x+15
26x-20=15
+20=+20
26x=35
x=35/26
2007-05-25 12:48:02 · answer #4 · answered by Anonymous · 1⤊ 0⤋
5X + 5(3X-4) = 3 + 2(-3X + 6)
5X + 15X - 20 = 3 - 6X + 12
20X - 20 = 15 - 6X
26X = 35
x = 35/26
2007-05-25 12:54:54 · answer #5 · answered by Anonymous · 0⤊ 0⤋
You have one unknown (x), so you should be able to solve.
Now, the trick is to isolate all x-terms on one side of the equation. That will let you get a value.
So, the first thing you need to do is to multiply out the factors. That will give you:
5x+15x-20=3-6x+12 or
20x-20=15-6x
If you add or substract the same amount to either side of the equation, you keep equality, add 6x to both sides. Now, you get:
26x - 20 = 15
Now, add 20 to both sides and you get:
26x=35
Now, divide by 26 on both sides and you get:
x=35/26 and that's your answer
2007-05-25 12:47:34 · answer #6 · answered by RG 3 · 1⤊ 0⤋
5x +15x -20 =3 +-6x+12 20x - 20 = -6x + 15
26x = 35 x= 35/26 A linear equation has two variables (x,y)
2007-05-25 12:46:31 · answer #7 · answered by dwinbaycity 5 · 1⤊ 0⤋
5x + 15x - 20 = - 6x + 15
26x = 35
x = 35 / 26
2007-05-26 03:38:30 · answer #8 · answered by Como 7 · 0⤊ 0⤋
5x+15x-20=3-6x+12
5x+15x-20-15+6x=0
26x-35=0
26x=35
x=35/26
x=1.346
2007-05-25 12:52:36 · answer #9 · answered by Anonymous · 0⤊ 0⤋
5x+15x-20=3-6x+12
20x-20=15-6x
-20 -20
20x=-5-6x
-6x
14x=-5
divide by 14
x=-5/14
i think that right
2007-05-25 12:46:58 · answer #10 · answered by john x 2 · 0⤊ 4⤋