8x-15 =3x how to do this

Mathematics

2 answers:

Sedaia [141]3 years ago

7 0

<span>8x-15 =3x
Subtract 8x from both sides
-15= -5x
Divide both sides by -5
Final Answer: 3=x</span>

Greeley [361]3 years ago

6 0

8x - 15 = 3x
+15 +15
8x = 3x + 15
-3x
5x = 15
/5 /5
x = 3

You might be interested in

Find the<br> area of the figure.

EastWind [94]

Answer:

22 sq ft

Step-by-step explanation:

8 0

3 years ago

(2+x)dy/dx=3y need help

den301095 [7]

$(2+x) \frac{dy}{dx} =3y$
$\frac{1}{3y} dy= \frac{1}{2+x} dx$
$\int { \frac{1}{3y} } \, dy = \int { \frac{1}{2+x} } \, dx$
$\frac{1}{3}\ln(3y) = \ln(2+x) + C$
(raise both to the power e): $e^{ \frac{1}{3}\ln(3y)}=e^{\ln(k(2+x))}$
$(3y)^ \frac{1}{3} =k(2+x)$
$3y=k(2+x)^3$
$y= k(2+x)^3$

5 0

3 years ago

Find the new balance if $875 is deposited and $316 is withdrawn from a balance of $2,056.

cestrela7 [59]

Hello!

Answer:
$2,615
Explanation:
The balance of $ 2,056 is a positive number,
The deposits of $ 875 is a positive number.
The withdrawal of $ 316 is a negative number.

5 0

3 years ago

Please solve 25/5(2+3)=

Sveta_85 [38]

The answer to this question is 25

3 0

3 years ago

Given the system of equations 4x+2y=8 and 5x-3y=4, what is the value of x

MArishka [77]

◆ LINEAR EQUATIONS IN TWO VARIABLES ◆

$given \: the \: sytem \: of \: equation \: - \\ \\ 4x + 2y = 8 \: \\ therefore \\ \\ \: 2x + y = 4 \: \: \: - - - eq(1)\\ \\ 5x - 3y = 4 \: \: \: \: - - - eq(2) \\ \\ multiplying \: eq(1) \: \: by \: \: - 3 \: \\ \\ we \: get \: - \\ \\ - 6x - 3y = - 12 \: \: \: - - - eq(3) \\ \\ solving \: eq(2) \: and \: eq(3) \: simultaneously \\ \\ we \: get \: - \\ \\ 11x = 16 \\ \\ x = \frac{16}{11} \: \: \: \: \: ans.$

8 0

3 years ago