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4 years ago

Please help i think i solved it correctly but i just want to double check

Mathematics

2 answers:

Firlakuza [10]4 years ago

8 0

Subtract 21 from both sides

Step2247 [10]4 years ago

8 0

absolute value inequalities have 2 solutions

remember when you the negative to flip the inequality

5x+2 < 12 and 5x+2 >-12

subtract 2 from each side

5x < 10 and 5x > -14

divide by 5

x<2 and x > -14/5

-14/5 < x< 2

Answer:

-2 4/5 < x < 2

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yKpoI14uk [10]

Answer:

The solution of the linear system is:

$x = 2$ and $y = -2$

Step-by-step explanation:

The following linear equation is solved as follows:

$8\cdot x + y = 14$

$3\cdot x + y = 4$

After some algebraic manipulation:

$y = 14 - 8\cdot x$

$y = 4 - 3\cdot x$

$14 - 8\cdot x = 4 - 3\cdot x$

$10 = 5\cdot x$

$5\cdot x = 10$

$x = 2$

And finally,

$y = 4 - 3\cdot (2)$

$y = -2$

The solution of the linear system is:

$x = 2$ and $y = -2$

3 0

3 years ago

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I don't under stand what is wrong.

MAXImum [283]

Answer:

In the first step, there is an issue when distributing the -3 to the terms inside of the parentheses. When multiplying the -3 to the -5, you would get an answer of +15, not -15.

The full correct process is:

(4m + 9) - 3(2m - 5) = 4m + 9 - 6m + 15

= 4m - 6m + 9 + 15

= -2m + 24

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3 years ago

10+(-3 3/8 i need the answer

castortr0y [4]

10+(3*3/8) =

10+(9/8)=

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Gala2k [10]

Answer:

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Step-by-step explanation:

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3 years ago

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babymother [125]

Answer:

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Step-by-step explanation:

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4 years ago

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