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lindseydupre
21.10.2020 •
Mathematics
How many solutions exist for the given equation?
Solve for x.
6(x – 1) = 9(x + 2)
x = –8
x = –3
x = 3
x = 8
Solved
Show answers
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Ответ:
-8
Reorder the terms:
-6 + 6x = 9[2 + x]
-6 + 6x = [2 * 9 + x * 9]
-6 + 6x = [18 + 9x]
Solving
-6 + 6x = 18 + 9x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-9x' to each side of the equation.
-6 + 6x + -9x = 18 + 9x + -9x
Combine like terms: 6x + -9x = -3x
-6 + -3x = 18 + 9x + -9x
Combine like terms: 9x + -9x = 0
-6 + -3x = 18 + 0
-6 + -3x = 18
Add '6' to each side of the equation.
-6 + 6 + -3x = 18 + 6
Combine like terms: -6 + 6 = 0
0 + -3x = 18 + 6
-3x = 18 + 6
Combine like terms: 18 + 6 = 24
-3x = 24
Divide each side by '-3'.
x = -8
Simplifying
x = -8
Ответ:
5/12
Step-by-step explanation:
25/60=5/12
give brainliest pls