3 years ago

Y=4x. 3x-y=1 how to get the y value

1 answer:

4 0

Since y=4x
substitute 4x into the second equation
3x-4x=1
-x=1
x=-1
if x=-1, substitute x=-1 in the equ 1
y=4x
y=4(-1)
y=-4

You might be interested in

algol [13]

The answer to the question is 1/-5

8 0

3 years ago

faust18 [17]

Answer:

Step-by-step explanation:

Your question is not complete.

According to what do we validate with the equation.

add more info in the question because all of them can be true without any condition given or validation.

7 0

3 years ago

strojnjashka [21]

Answer:

42.1

Explanation step-by-step:

Working out the lenght of the blue-dashed line:

SOH

47 is the Hypotenuse.

the blue line is the adjacent.

adjacent= Cos(30) x47

adjacent= 40.7

Working out x :

40.7 is the opposite this time.

x is the adjacent.

x = 40.7/ Tan(44)

x = 42.1

5 0

3 years ago

Lynna [10]

Answer: 9

Step-by-step explanation: -(-3)=3^2=9

7 0

3 years ago

galina1969 [7]

$\frac{x}{2} = 7\\\\\frac{x}{2} \times 2 = 7\times2\\\\\boxed{x=14}$

5 0

3 years ago