All categories

3 years ago

Solve the System of Equations:-10x-3y=-18

Mathematics

1 answer:

AlladinOne [14]3 years ago

7 0

-10x - 3y = -18 (1)

-7x - 8y = 11 (2)

Multiply equation (1) by 8 and equation (2) by -3

-80x - 24y = -144 (1)

21x + 24y = -33 (2)

-------------------------------Add

-59x = -177

x = 3

Plug in x = 3 into -10x-3y=-18

-10(3) -3y =-18

-30 - 3y = -18

3y = -12

y = -4

Answer

(3, - 4)

You might be interested in

Antonio uses a calculator to find 38 minus StartFraction 44 minus 16 over 4 EndFraction and gets a result of –10. Which statemen

frozen [14]

Answer:

The second statement is Correct.

Step-by-step explanation:

Consider the provided information.

It is given that Antonio uses a calculator to find $38-\frac{44-16}{4}$ and gets a result of –10.

$38-\frac{44-16}{4}=38-\frac{28}{4}$

$=38-7$

$=31$

So, the first statement is incorrect.

2nd statement: Antonio found the answer for $38-44-\frac{16}{4}$

$38-44-\frac{16}{4}=-6-4$

$38-44-\frac{16}{4}=-10$

The second statement is Correct.

Third statement: Antonio found the answer for $\frac{38-44-16}{4}$

$\frac{38-44-16}{4}=-5.5$

So, the third statement is incorrect.

Fourth statement: Antonio found the answer for $38+\frac{44-16}{4}$

$38+\frac{44-16}{4}=38+7$

$38+\frac{44-16}{4}=45$

So, the fourth statement is incorrect.

Hence, the second statement is Correct.

5 0

3 years ago

Read 2 more answers

Meghan has a beginning balance of $750 in her checking account. She writes a check for $150 and has a debit transaction of $135.

tatuchka [14]

Her new balance is her new balance would be 435
heres my math
750-150-135=435

8 0

3 years ago

Read 2 more answers

Please answer quickly:

mina [271]

You have to move variables on one side and constants on the other aby - b + b = c + b aby = c + b y = (c + b)/ab

3 0

3 years ago

Read 2 more answers

Find the measure of the angle indicated in bold.

muminat

Answer:

Hello it's me,

I've thought about us for a long, long time,

Maybe I think too much but something's wrong,

There's something here that doesn't last too long,

Maybe I shouldn't think of you as mine.

Step-by-step explanation:

3 0

3 years ago

The Goodsmell perfume company has a new line of perfume and is designing a new bottle for it. Because of

Alex777 [14]

Answer:

its to long for me

Step-by-step explanation:

5 0

3 years ago