3 years ago

3 y + 13 equals 2y + 2 equals 5 y - 5

Mathematics

1 answer:

Volgvan3 years ago

4 0

3y+13=2y+2
y+13=2 (subtracting 2y from both sides)
y=-11 (subtracting 13 from both sides)

You might be interested in

5. Let's factorize the following numbers and express in exponential form<br>16<br>

timama [110]

Answer:

2^4

Step-by-step explanation:

16 = 2x2x2x2 = 2 to the power of 4

7 0

2 years ago

Read 2 more answers

Round to the nearest hundredth <br>(please help picture inculded)

Yuri [45]

Answer:

AB ≈ 6.53

Step-by-step explanation:

using the cosine ratio in the right triangle

cos40° = $\frac{adjacent}{hypotenuse}$ = $\frac{AC}{AB}$ = $\frac{5}{AB}$ ( multiply both sides by AB )

AB × cos40° = 5 ( divide both sides by cos40° )

AB = $\frac{5}{cos40}$ ≈ 6.53 ( to the nearest hundredth )

5 0

1 year ago

Triangle ABC has vertices A(0, 6) , B(−8, −2) , and C(8, −2) . A dilation with a scale factor of 12 and center at the origin is

Ksivusya [100]

1.) Is -4
2.) Is -1

I just took the test, So I know that's the right answer! :)

Hope this helps. :)

7 0

3 years ago

Read 2 more answers

What is the solution of -8 / 2 y - 8 equals 5 / y + 4 - 7 y + 8 / Y 2 - 16

AysviL [449]

Answer:

The value of y is 6.

Step-by-step explanation:

The given equation is

$\dfrac{-8}{2y-8}=\dfrac{5}{y+4}-\dfrac{7y+8}{y^2-16}$

It can be rewritten as

$\dfrac{-8}{2(y-4)}=\dfrac{5}{y+4}+\dfrac{7y+8}{y^2-4^2}$

$\dfrac{-4}{(y-4)}=\dfrac{5}{y+4}+\dfrac{7y+8}{(y+4)(y-4)}$

Multiply both sides by (y+4)(y-4).

$(y+4)(y-4)(\dfrac{-4}{(y-4)})=(y+4)(y-4)(\dfrac{5}{y+4})+(y+4)(y-4)(\dfrac{7y+8}{(y+4)(y-4)})$

$(y+4)(-4)=(y-4)(5)+7y+8$

$-4y-16=5y-20-(7y+8)$

$-4y-16=5y-20-7y-8$

$-4y-16=-2y-28$

$-4y+2y=-28+16$

$-2y=-12$

Divide both sides by -2.

$y=6$

Therefore, the value of y is 6.

5 0

2 years ago

<img src="https://tex.z-dn.net/?f=42%20%5Cdiv%20%28%20-%207%29" id="TexFormula1" title="42 \div ( - 7)" alt="42 \div ( - 7)" ali

Sliva [168]

Answer:

wait huh?im confused lol

Step-by-step explanation:

8 0

2 years ago