2007-12-20 10:35:15 · 7 answers · asked by Kimberly M 1 in Science & Mathematics ➔ Mathematics
Simplifying
15x + 24 = 8(10 + 3x) + -2
Reorder the terms:
24 + 15x = 8(10 + 3x) + -2
24 + 15x = (10 * 8 + 3x * 8) + -2
24 + 15x = (80 + 24x) + -2
Reorder the terms:
24 + 15x = 80 + -2 + 24x
Combine like terms: 80 + -2 = 78
24 + 15x = 78 + 24x
Solving
24 + 15x = 78 + 24x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-24x' to each side of the equation.
24 + 15x + -24x = 78 + 24x + -24x
Combine like terms: 15x + -24x = -9x
24 + -9x = 78 + 24x + -24x
Combine like terms: 24x + -24x = 0
24 + -9x = 78 + 0
24 + -9x = 78
Add '-24' to each side of the equation.
24 + -24 + -9x = 78 + -24
Combine like terms: 24 + -24 = 0
0 + -9x = 78 + -24
-9x = 78 + -24
Combine like terms: 78 + -24 = 54
-9x = 54
Divide each side by '-9'.
x = -6
Simplifying
x = -6
2007-12-20 10:40:10 · answer #1 · answered by Anonymous · 1⤊ 0⤋
15x +24=8(10+3x)-2. Solve for x.
First off, you see the 8(10+3x). By distributing the X, you get 80+24x. thus now we have : 15x+24=80+24x-2. Then, subtract the two from 80. 15x+24=78+24x. Now, you want the X's and Non-Xs on one side. By subtracting 24 from each side, you get 15x=54+24x. Then by subtracting the 24x from each side, you get -9x=54. Now you are home free. Dividing by -9 on each side gives you x=-6.
X=-6 is your answer.
2007-12-20 10:41:15 · answer #2 · answered by chetna 1 · 0⤊ 0⤋
a million. 3x^2 + 15x + 18 = 0 Divide the equation by 3, x^2 + 5x + 6 = 0 x^2 + 3x + 2x + 6 = 0 x(x + 3) + 2(x + 3) = 0 (x + 2)(x + 3) = 0 x + 2 = 0 or x + 3 = 0 x = -2, -3 2. y^4 + 2y^3 - 80y^2 = 0 Divide the equation by y^2 y^2 + 2y - eighty = 0 y^2 + 10y - 8y -eighty = 0 y(y + 10) - 8(y + 10) = 0 (y -8)(y + 10) = 0 y-8 = 0 OR y + 10 = 0 y = 8, -10
2016-11-23 18:20:56 · answer #3 · answered by ? 4 · 0⤊ 0⤋
15 x + 24 = 80 + 24x - 16
-72 = 9 x
x = -8
2007-12-20 11:22:12 · answer #4 · answered by ViewtifulJoe 4 · 0⤊ 0⤋
15x + 24 = 80 + 24x - 2
-9x = 54
x = -6 (Soni Somantri SMA Alfa Centauri)
2007-12-20 10:46:28 · answer #5 · answered by soni s 2 · 0⤊ 0⤋
15x+24=80+24x-2
15x+24-24x=24x-24x+78
-9x=54
x=-6
2007-12-20 11:03:12 · answer #6 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
Simplify terms. Get x's on one side of the equal sign. X should be -6
2007-12-20 11:01:27 · answer #7 · answered by ひいらぎ 5 · 0⤊ 0⤋