3 years ago

-6x-6y =18 6x-3y=27 its supposed to be solving systems by elimination by adding or subracting, im really confused.

Mathematics

1 answer:

Lera25 [3.4K]3 years ago

3 0

Answer:

y = -5

x = 2

Step-by-step explanation:

The computation is show below:

Given that

-6x - 6y = 18

6x - 3y = 27

Now if we solved both equation so

-9y = 45

y = -5

And, x is

-6x - 6(-5) = 18

-6x + 30 = 18

-6x = 18 - 30

-6x = -12

x = 2

You might be interested in

Can we conclude that two similar figures can also be congruent figures? Explain.

shusha [124]

Answer:

In similar figures, the angles are congruent, even if the sides are not. Notice that one angle in each pair of figures corresponds to an angle in the other figure. They have the same shape but not the same size

7 0

3 years ago

Find 1/9 as many as 3 divided by 5

sergeinik [125]

(3 ÷ 5) ÷ 9 there you go.

3 0

3 years ago

This is kinda long. It’s in the picture!! Thanks to everyone who has helped me

kherson [118]

C because something something

8 0

3 years ago

What is the solution of the following question?<br> x^2+10x+25=12

zalisa [80]

Make equal to 0
minus 12from both sides
x^2+10x+13=0
we can't factor so use quadratic formula

x= $\frac{-b+/- \sqrt{b^{2}-4ac} }{2a}$
x= $\frac{-10+/- \sqrt{10^{2}-4(1)(13)} }{2(1)}$
x= $\frac{-10+/- \sqrt{100-52} }{2}$
x= $\frac{-10+/- \sqrt{48} }{2}$
x= $\frac{-10+/- 4\sqrt{3} }{2}$
x= $-5+/- 2\sqrt{3}$

x= $-5+ 2\sqrt{3}$ or $-5- 2\sqrt{3}$

aprox
x=-1.5359 or -8.4641

3 0

3 years ago

Read 2 more answers

Help please I need my extra credit

masha68 [24]

Answer: For a test? Nah, thats cheating

Step-by-step explanation: Just kidding, the answer is B...

8 0

3 years ago