Question

if 42y=256,then 4-y equal​

Answer 1

Answer:

answer is

y=4 is correct you can check and confirm it

Step-by-step explanation:

4-y

-y=-4

y=4

Answer 2

Answer:

$\sf{\circ\;4-y=\dfrac{-44}{21}}$

Step-by-step explanation:

Given that:

• 42y = 256

To Find:

• 4 - y

Process:

Its given that 42y = 256. So, after solving the equation using the method of transposition, we will get the value of y. After that, we can substitute the value of y to 4 - y. After substituting the values and solving the result will be your answer.

Solution:

According to the question,

$\sf{\implies42y=256}$

Transposing 42 from LHS to RHS and changing its sign,

$\sf{\implies y=\dfrac{256}{42}}$

Reducing the numbers,

$\sf{\implies y=\dfrac{256\div2}{42\div2}}$

$\sf{\implies y=\dfrac{128}{21}}$

Hence,

$\sf{\circ\;y=\dfrac{128}{21}}$

Now,

$\sf{\implies4-y}$

Substituting the value of y to 4 - y,

$\sf{\implies4-\dfrac{128}{21}}$

Subtracting,

$\sf{\implies\dfrac{84-128}{21}}$

$\sf{\implies\dfrac{-44}{21}}$

Hence,

$\sf{\circ\;4-y=\dfrac{-44}{21}}$