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Ivanshal [37]
3 years ago
15

How do you solve this? |6x|+3=21

Mathematics
2 answers:
Sliva [168]2 years ago
6 0

Answer:

Step-by-step explanation:

1. 21= 6x+3

2. Subtract the 3 from one side which will cancel it out. Then go to the other side of the equation and subtract 3 from 21. The equation will now look like this- 19= 6x

3. Now divide by 6 on one side to cancel it out. Then go to the other side and divide 19 by 6.

Answer: X = 3.16666666667

<u>Two things to remember when doing these equations</u>

- Think of it as trying to get x by itself

- If you add, subtract, divide, or multiply on one side of the equation always remember to do the same thing to the other side.

Lady_Fox [76]3 years ago
4 0
6x plus 3 =21
21-3=18 divided by 6 equals 3
X=3
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Goshia [24]

Answer:

<h2>-1</h2>

Step-by-step explanation:

2x + 7  - 1 = 2x + 7

=  > 2x - 1 = 2x  + 7 - 7

=  > 2x - 1 = 2x

=  >  - 1 = 2x - 2x

=  > x =  - 1

7 0
3 years ago
(9a^2 + 7a + 8) - (2a^2 + 5a + 1)
Sergio [31]

Answer:  7a^2+2a+7

Step-by-step explanation:Distribute the Negative Sign:

=9a2+7a+8+−1(2a2+5a+1)

=9a2+7a+8+−1(2a2)+−1(5a)+(−1)(1)

=9a2+7a+8+−2a2+−5a+−1

Combine Like Terms:

=9a2+7a+8+−2a2+−5a+−1

=(9a2+−2a2)+(7a+−5a)+(8+−1)

=7a2+2a+7

8 0
2 years ago
PLEASE HELP ME I BEG
Kay [80]

Answer:

see explanation

Step-by-step explanation:

Using the trigonometric identity

• 1 + cot²x = csc²x

Consider the left side

csc^{4} x - cot^{4} x

Factorise as a difference of squares

= (csc²x - cot²x)(csc²x + cot²x)

= (1 + cot²x - cot²x)(csc²x + cot²x)

= csc²x + cot²x

= csc²x + csc²x - 1

= 2csc²x - 1 = right side ⇒ verified




8 0
3 years ago
A Grocery store sells steak for $6.10 per pound.What would be the cost of 2 3/5 LB of steak?
77julia77 [94]
<h2>Answer:</h2>

<u>The cost would be </u><u>$15.86</u>

<h2>Step-by-step explanation:</h2>

The cost of 1 steak is $6.10

The cost of 2 3/5 steaks will be

Cost of  2 3/5 steaks = 6.10 * 2 3/5

Cost of  2 3/5 steaks = $15.86

8 0
3 years ago
The three altitudes of ΔABC intersect at point F. Point F is the
zlopas [31]
D.) Orthocenter.....
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2 years ago
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