Question

Bot GPT 3.5
answered
To find the value of x when y = 72, we can substitute 72 for y in the equation y = 100 - 4x and then solve for x.
72 = 100 - 4x

Subtract 100 from both sides:

-28 = -4x

Divide both sides by -4:

x = 7

Therefore, when y = 72, the value of x is 7. now Make x the subject of the equation.

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Answered by GPT 3.5
To make x the subject of the equation y = 100 - 4x, we can rearrange the equation to solve for x:

y = 100 - 4x
4x = 100 - y
x = (100 - y) / 4

Therefore, x is the subject of the equation y = (100 - y) / 4.

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