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mixer [17]
2 years ago
15

How do you do basic algebra?

Mathematics
1 answer:
kvasek [131]2 years ago
4 0

Step-by-step explanation:

Algebra is great fun - you get to solve puzzles!

A Puzzle

What is the missing number?

− 2 = 4

OK, the answer is 6, right? Because 6 − 2 = 4. Easy stuff.

Well, in Algebra we don't use blank boxes, we use a letter (usually an x or y, but any letter is fine). So we write:

x − 2 = 4

It is really that simple. The letter (in this case an x) just means "we don't know this yet", and is often called the unknown or the variable.

And when we solve it we write:

x = 6

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Find the coordinates of the reflected image.
andreyandreev [35.5K]

Answer:

see explanation

Step-by-step explanation:

Under a reflection in the x- axis

a point (x, y ) → (x, - y ), hence

F(- 1, 9) → F'(- 1, - 9)

G(- 2, 1) → G'(- 2, - 1)

H(- 7, 4) → H'(- 7, - 4)

4 0
3 years ago
Select the set of equations that would be used to solve the following absolute value equation:|x-5|=20
-BARSIC- [3]
X-5= 20
x-5= -20

Absolute value makes a negative positive, so when you are solving x-5 could have been 20 originally or -20 originally. Solve for both.
7 0
4 years ago
Read 2 more answers
How to solve 2/3(3×+9)=-2(2×+6)
Furkat [3]

2/3 (3x + 9) = -2(2x + 6)

Step by step

2/3 * 3x  and 2/3 * 9 = 2x and 6

which is 2x + 6 (since 6 is a positive put a plus 6 [ + 6 ] )

-2 * 2x and -2 * 6 = -4x and -12

which is -4x - 12 (since 12 is negative put a minus 12 [ - 12 ])

We now have 2x + 6 = -4x - 12

now add 4x on both sides

2x + 6 + 4x = −4x − 12 + 4x

6x + 6 = −12

now Subtract 6 from both sides.

6x + 6 − 6 = −12−6

6x=−18

finally Divide both sides by 6.

6x/6 = -18/6

x = -3

The answer is x=−3

5 0
4 years ago
Draw quick pictures to show how to subtract 314 and 546.
Assoli18 [71]
546-314=232
That's the answer
3 0
3 years ago
Urgent help PLEASE NEED AWNSER
makkiz [27]
2s+s=18, i would say d but there are no letter options
3 0
3 years ago
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