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Setler79 [48]
3 years ago
12

0.4x+18=-13 what is x?

Mathematics
2 answers:
Rasek [7]3 years ago
3 0

Answer:

-52.5 or -53

Step-by-step explanation:

Start by subtracting 18 from both sides. With you get 0.4=-21. Now divide 0.4 into both sides.

patriot [66]3 years ago
3 0

Answer:

x=-77.5

Step-by-step explanation:

since we're looking for x,18 must cross the equal sign to become negative.

0.4x=-13-18

0.4x=-31

dividing both side by 0.4,

we have x=-31÷0.4

therefore x= -77.5

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First factor 175:

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Hope this helps!
5 0
3 years ago
Simplify (6x2 − 3 − 5x3) − (4x3 2x2 − 8). 9x3 − 4x2 − 5 −9x3 4x2 5 x3 − x2 − 13x3 −x3 x2 13x3.
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Like terms have the same variable and power. The simplification of the expression (6x²-3-5x³)-(4x³+2x²-8) is -9x³+4x²+5.

<h3>What are Like terms?</h3>

Like terms are those terms that are having the same variables, also the variables are of the same order as well.

for example, 25x and 5x are like terms; 30xy and 7xy are like terms, 9x³ and 4x² are not like terms, etc.

We know that to simplify an expression we need to add or subtract like terms, therefore,

(6x^2- 3 - 5x^3) -(4x^3+2x^2 - 8)\\\\= 6x^2- 3 - 5x^3 -4x^3-2x^2 + 8\\\\= - 5x^3 -4x^3+6x^2-2x^2+8-3\\\\ = -9x^3+4x^2+5

Hence, the simplification of the expression (6x²-3-5x³)-(4x³+2x²-8) is -9x³+4x²+5.

Learn more about Like Terms:

brainly.com/question/2513478

7 0
2 years ago
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gtnhenbr [62]

your question is not really a question.

3 0
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harina [27]

Step-by-step explanation:

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tia_tia [17]

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Step-by-step explanation:

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