corrah15
27.10.2020 •
Mathematics
What is the solution to 8x - 3(2x - 4) = 3x - 18?
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Ответ:
the answer is 3
Step-by-step explanation:
the answer is 3 implifying
8x + -3(2x + -4) = 18
Reorder the terms:
8x + -3(-4 + 2x) = 18
8x + (-4 * -3 + 2x * -3) = 18
8x + (12 + -6x) = 18
Reorder the terms:
12 + 8x + -6x = 18
Combine like terms: 8x + -6x = 2x
12 + 2x = 18
Solving
12 + 2x = 18
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-12' to each side of the equation.
12 + -12 + 2x = 18 + -12
Combine like terms: 12 + -12 = 0
0 + 2x = 18 + -12
2x = 18 + -12
Combine like terms: 18 + -12 = 6
2x = 6
Divide each side by '2'.
x = 3
Simplifying
x = 3
Ответ:
Step-by-step explanation:
The multiplies of 3 from 1-20 are:
3, 6, 9, 12, 15, 18
Since there are
numbers from 1-20 inclusive, the probability that a ball is a multiple of 3 is 