4 years ago

Please help!! Show work

Mathematics

1 answer:

Basile [38]4 years ago

6 0

Answers: (x, y, z) = (1, 2, -1)

Solving Steps:

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What is 3x+15-9=2(x+2) ?

Margaret [11]

SOLVING:

3X + 15 - 9 = 2(X + 2)
3X + 6 = 2X + 4
3X - 2X = 4 - 6
X = - 2 ===> The great answer.

TESTING:
$3(-2)+15-9=2(-2+2)\\ \\-6+6=2(0)\\ \\\boxed{0}=\boxed{0}\quad\checkmark\ Correct.$
GOOD LUCK...!!

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3 years ago

I need the x and the y y I need the explication

stiv31 [10]

Step-by-step explanation:

(3x-11)+(2x+11)+2y = 180

5x+2y = 180

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3 years ago

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EleoNora [17]

Answer:

1/4 - 6x

Step-by-step explanation:

-1/2 *(-3/2 +6x+1) -3x

Distribute the -1/2

-1/2 * -3/2 -1/2*6x -1/2*1 -3x

3/4 -3x-1/2 -3x

Combine like terms

3/4 -1/2 -6x

Get a common denominator for the fraction (It would be 4)

3/4 -1/2*2/2 -6x

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3 years ago

Given f(x) = 3x - 40. If f(x)= 8, what is the value of x?

Amanda [17]

Answer:

Step-by-step explanation:

Given

f(x) = 3x - 40 and f(x) = 8 , then equate the right sides, that is

3x - 40 = 8 ( add 40 to both sides )

3x = 48 ( divide both sides by 3 )

x = 16 → C

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3 years ago

Given the following position function:

Anna71 [15]

It’s a very hard question

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3 years ago