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4 years ago

Solve 4(2x-3)=6x+2 I don't understand the steps pls

Mathematics

1 answer:

Marysya12 [62]4 years ago

6 0

Answer: x = 7

Step-by-step explanation:

4(2x-3) = 6x+2 <--distribute the 4

8x - 12 = 6x + 2 <---add 12 to both sides

8x = 6x + 14 <--- subrtract 6x from both sides

2x = 14 <--- divide by two

x = 7

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8. Simplify-(-4- 7) + (-2).

Gemiola [76]

Answer:

Step-by-step explanation:

6 0

3 years ago

If k=[-4 | 2, 6 | -3] and m=[2 | 8, -2 | 5] what is x when 2x -k = m

marshall27 [118]

Answer:

x = [-1 | 5, 2 | 1]

Step-by-step explanation:

We assume your notation is used to describe 2×2 matrices.

Solve for x:

2x -k = m

2x = m + k . . . . add k

x = (1/2)(m +k) . . . . multiply by 1/2

Fill in the values:

x = 1/2[2+(-4) | 8 +2, -2+6 | 5+(-3)]

x = [-1 | 5, 2 | 1]

5 0

3 years ago

23. Insert the missing number. 4 6 9 14 23 40 ? 138 266

Ksivusya [100]

Answer:

hey mate !!!

The pattern followed is

4x2-2= 8-2=6

6 x 2-3= 9

9 x 2- 4= 14

14 x 2-5 = 23

23 x 2-6= 40

40 x 2-7= 73

So, the next number will be 73.

3 0

4 years ago

What is 9y5−4y3−8y7−5y6+3y4 written in standard form?

Bingel [31]

Answer:

-8y^7 - 5y^6 + 9y^5 + 3y^4 - 4y^3

Step-by-step explanation:

Please be sure to use " ^ " to indicate exponentiation. Then,

your 9y5−4y3−8y7−5y6+3y4 becomes 9y^5 - 4y^3 - 8y^7 - 5y^6 + 3y^4.

We must now write that in descending order by powers of y:

-8y^7 - 5y^6 + 9y^5 + 3y^4 - 4y^3

4 0

3 years ago

I'm supposed to answer this word problem "Martin bought a television for $225. It had been on sale for 25% off. How much money d

garik1379 [7]

Answer:

Martin saved $75 on the television because of the sale

Step-by-step explanation:

Equations

Let's call x=the original price of the television (before discount).

The television had been on sale for 25% off, this means the discount was:

25% of x = $\frac{25}{100}.x$ = 0.25x

The sale price was the original price minus the discount:

x - 0.25x = 0.75x

This is what Martin paid, thus:

0.75x = 225

Dividing by 0.75:

x = 225 / 0.75

x = $300

The original price of the television was $300, and the discount was:

0.25*$300 = $75

Martin saved $75 on the television because of the sale

4 0

3 years ago