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krok68 [10]
3 years ago
11

Solve the system: 4x – 3y = -21 X=-y-14

Mathematics
2 answers:
Reika [66]3 years ago
7 0

Answer:X=−4x/3−21

                 y=4x/3+7

Step-by-step explanation:

Liula [17]3 years ago
4 0

Answer:

The solution for the system of equations is

x=2,y=−2

Explanation:

4x−3y=14.....equation (1)

y=−3x+4.....equation (2)

Solving by substitution

Substituting equation 2 in equation 1

4x−3⋅(−3x+4)=14

4x+9x−12=14

13x=14+12

13x=26

x=2

Finding y by substituting x in equation 1

4x−3y=14

4⋅2−3y=14

8−3y=14

8−14=3y

3y=−6

y=−2

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Step-by-step explanation:

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Read 2 more answers
MATH ONE QUESTION!!!!!!!!!!!!
yulyashka [42]
19x - 11 = 10x + 7
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answer
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5 0
3 years ago
Can someone help me asap !!
aivan3 [116]

Answer:

The answer is negative. Answer choice B

Step-by-step explanation:

Here is the question:

-3^40(5.6/2.1)

According to order of operations, we must do -3^40 first.

Its important to note that -3^40 is different than (-3)^40. In the problem you specified, the ^40 only applies to the 3, not -3. So, first we do 3^40 which is a huge number. And then, we need to add a negative symbol to that huge number. So now we have a massive negative number multiplied by 5.6/2.1, which is obviously positive. Obviously, a negative number multiplied by a positive number is still negative. Therfore, the answer is negative.

I hope my answer helped you :)

If you are happy with my answer please vote Brainliest. Thanks!

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