3 years ago

13) -3x - 4y = 8-4x - 3y=6

Mathematics

1 answer:

Dvinal [7]3 years ago

6 0

Answer:

x = 0, y = -2

Step-by-step explanation:

-3x - 4y = 8 (1)

-4x - 3y=6 (2)

Multiply (1) by -4 and (2) by -3, we have:

12x + 16y = - 32 (3)

12x + 9y= -18 (4)

Subtract (4) from (3), we have:

(12x + 16y) - (12x + 9y) = - 32 - (-18)

<=> 7y = - 14

=> y = - 2

Replace y with - 2 in (3), we have x = 0

You might be interested in

Please help! Find the x-intercepts of the parabola with vertex (-4, 2) and y-intercept (0, -30). Write your answer in this form:

ch4aika [34]

X1-y1
x2-y2

-4-3
0+30

-6
30

the answer would be -0.2

6 0

3 years ago

Explain the steps taken to write an Explain the steps taken to write an equation from a description given in words.Equation from

liraira [26]

Step-by-step explanation:

The key to solving word problems is in translation: turning word into math

Below is a general approach to most/any word problem

1. Read through the whole question once, without lingering over details, to get some sense of the overall problem

2. identify and label the variables or unknowns in a way that makes it easy to remember what they stand for.

3. translate the problem into one or more equations, sentence by sentence, and be careful of the order in which you translate the terms

4. solve the equation(s)

5. check your work

8 0

3 years ago

Read 2 more answers

I just need the answer no explanation

SOVA2 [1]

Answer:

ok no explanation.

2 is the answer

4 0

3 years ago

Read 2 more answers

Find the distance between the points (-4, -20) and (20, -20)

Gnoma [55]

Answer:

Babes, see the pic for the answer...

3 0

3 years ago

Read 2 more answers

Can someone do my last question and actually try it

MariettaO [177]

Answer:

What's the question?

Step-by-step explanation:

6 0

3 years ago

13) -3x - 4y = 8-4x - 3y=6​

13) -3x - 4y = 8-4x - 3y=6