Question

2x-8y=3 i x+4y =5...........

Answer 1

Объяснение:

х=13/4

у=7/16

...........

Answer 2

To solve the system of equations:

2x - 8y = 3 ...(Equation 1) x + 4y = 5 ...(Equation 2)

We can use the method of substitution or elimination. Let's use the substitution method:

From Equation 2, we can express x in terms of y:

x = 5 - 4y

Now substitute this value of x into Equation 1:

2(5 - 4y) - 8y = 3 10 - 8y - 8y = 3 10 - 16y = 3 -16y = 3 - 10 -16y = -7

Divide both sides of the equation by -16:

y = (-7) / (-16) y = 7/16

Now substitute the value of y back into Equation 2 to find x:

x + 4(7/16) = 5 x + 28/16 = 5 x + 7/4 = 5

To get rid of the fraction, multiply the equation by 4:

4x + 7 = 20

Subtract 7 from both sides:

4x = 20 - 7 4x = 13

Divide both sides by 4:

x = 13/4

Therefore, the solution to the system of equations is x = 13/4 and y = 7/16.