4 years ago

– 3х + 3 = 9 1 2x – 7y = -14

Mathematics

1 answer:

aliina [53]4 years ago

8 0

Answer:

x = -2, y = -(10/7)

Step-by-step explanation:

-3x + 3 = 9 ---------- equation 1

12x - 7y = -14 --------equation 2

from equation 1

-3x + 3 = 9

collect like terms

-3x = 9 - 3

-3x = 6

dividing both sides by -3

x = -2

substitute x = -2 into equation 2

12x - 7y = -14

12(-2) - 7y = -14

-24 - 7y = -14

collect like terms

-7y = -14 + 24

-7y = 10

divide both sides by -7

y = -(10/7)

therefore x = -2, and y = -(10/7)

You might be interested in

jen has 3 bags of pears each bag has 5 pears she gives the same number of pears to 4 friends how many pears will each friend get

Free_Kalibri [48]

Answer:

8888888888888888888888999998888

5 0

3 years ago

Read 2 more answers

Hans is planting a garden with snapdragons and daisies. The table shows some possible combinations of the two plants. If Hans pl

kow [346]

The equation is $x+y=45$

For 29 daisies, we have $y=29$
$\rightarrow x+29=45$
$\rightarrow x=16$ snapdragons

6 0

4 years ago

Read 2 more answers

Molly buys 2 boxes of crackers. Each box has 4 packages of crackers in it. Molly

castortr0y [4]

Answer:

4 x 2 x 10 = 80

Step-by-step explanation:

80 Crackers total divided evenly among the two boxes gives you 40 crackers per box. Next there are 4 packages and 40 crackers in the packages total. So divide 40 by 4. This gives you 10. 10 crackers per package.

5 0

3 years ago

$2.95+$3.09+$5.85+$4.10

Gnom [1K]

Step-by-step explanation:

the value of P(B|A)P(B∣A), rounding to the nearest thousandth

3 0

3 years ago

Read 2 more answers

Anyone know 112.5 ft. in fraction form ?

Keith_Richards [23]

.5 is really just 1/2 as a fraction so:
112 1/2 is fraction form

6 0

4 years ago