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liubo4ka [24]
3 years ago
13

HELP i need help solving 5x+(3x-4/5)=12

Mathematics
2 answers:
pav-90 [236]3 years ago
8 0

Answer:

x=\frac{8}{5}

Step-by-step explanation:

We have been given an equation 5x+(3x-\frac{4}{5})=12. We are asked to solve the given equation.

First of all, we will remove parentheses as:

5x+3x-\frac{4}{5}=12

Now, we will combine like terms.

8x-\frac{4}{5}=12

Upon adding \frac{4}{5} on both sides of equation, we will get:

8x-\frac{4}{5}+\frac{4}{5}=12+\frac{4}{5}

8x=12+\frac{4}{5}

Now, we need to make a common denominator.

8x=\frac{60}{5}+\frac{4}{5}

8x=\frac{60+4}{5}

8x=\frac{64}{5}

Our last step is to divide both sides by 8 as:

\frac{8x}{8}=\frac{64}{5\cdot 8}

x=\frac{8}{5\cdot 1}

x=\frac{8}{5}

Therefore, x=\frac{8}{5} is the solution of our given equation.

Natali [406]3 years ago
6 0

Answer:

x=7/5

Step-by-step explanation:

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labwork [276]

Answer:

  (x, y) = (0, -2248)

Step-by-step explanation:

<u>Substitution</u>

Substitute for y:

  300x -2248 = 350x -2248

  0 = 50x . . . . . . . . add 2248-300x to both sides

  x = 0

  y = 300·0 -2248

The solution is (x, y) = (0, -2248).

__

<u>Elimination</u>

Subtract the first equation from the second.

  (y) -(y) = (350x -2248) -(300x -2248)

  0 = 50x

  x = 0

  y = 300·0 -2248

The solution is (x, y) = (0, -2248).

__

<em>Additional comment</em>

If you think for a bit about what the graph looks like, you realize both lines cross at their y-intercept, (0, -2248). That point of intersection is the solution to the system of equations.

7 0
2 years ago
How to solve 3/2=2x this problem
poizon [28]

Step-by-step explanation:

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3 0
3 years ago
Pls help question is on picture
brilliants [131]

Answer:

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Step-by-step explanation:

In a right triangle, the cosine is the ratio of the adjacent side to the hypotenuse:

\cos\theta = \frac{\text{adjacent}}{\text{hypotenuse}}

The adjacent side is the side that makes up the angle but is not the hypotenuse.

I'm assuming the answer box should ask for cos(theta) rather than cos(x).

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3 years ago
I need some help please
Ganezh [65]
SOH CAH TOA tells you
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