Ask question

Ask question

All categories

4 years ago

13

Y = 4x + 3 y = 2x − 4 what is the system of equations?

1 answer:

borishaifa [10]4 years ago

4 0

Answer: X=-7/2

y=-11

Step-by-step explanation:

4x+3=2x-4

4x-2x=-4-3

2x=-7

x=-7/2

y=-7/2*2-4

y=-7-4=-11

You might be interested in

Dahasolnce [82]

Answer:

a) $x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$ , $x_{2} = \frac{5\pi}{6}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$ , b) $x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$ , $x_{2} = \frac{5\pi}{3}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

Step-by-step explanation:

a) The equation must be rearranged into a form with one fundamental trigonometric function first:

$\sqrt{3}\cdot \csc x - 2 = 0$

$\sqrt{3} \cdot \left(\frac{1}{\sin x} \right) - 2 = 0$

$\sqrt{3} - 2\cdot \sin x = 0$

$\sin x = \frac{\sqrt{3}}{2}$

$x = \sin^{-1} \frac{\sqrt{3}}{2}$

Value of x is contained in the following sets of solutions:

$x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$

$x_{2} = \frac{5\pi}{6}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

b) The equation must be simplified first:

$\cos x + 1 = - \cos x$

$2\cdot \cos x = -1$

$\cos x = -\frac{1}{2}$

$x = \cos^{-1} \left(-\frac{1}{2} \right)$

Value of x is contained in the following sets of solutions:

$x_{1} = \frac{\pi}{3}\pm 2\pi \cdot i$ , $\forall i \in \mathbb{N}_{O}$

$x_{2} = \frac{5\pi}{3}\pm 2\pi\cdot i$ , $\forall i \in \mathbb{N}_{O}$

7 0

3 years ago

The nth term of a sequence is 2N - six

dolphi86 [110]

Answer:

ok nice to know

Step-by-step explanation:

that wasnt even a ????

4 0

3 years ago

PLEASE HELPPP I WILL MARK BRAINLIEST

Rina8888 [55]

Answer: they are different the difference is 28

Step-by-step explanation:

6 0

3 years ago

What is the value of 6x-3x +7 if x=9?

Lynna [10]

$6x - 3x + 7 \\ 3x + 7 \\ 3(9) + 7 \\ 27 + 7 \\ = 34$
Combine like terms and "plug in" x into the equation to eventually get 34 after some addition

8 0

3 years ago

Allisa [31]

Answer:

320,000

Step-by-step explanation:

4 0

3 years ago