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Rearranging formula to make one unknown as the subject of the formula YouTube Start of suggested clip End of suggested clip So i have to take 4x from this side. So making y the subject. This gets cancelled. So this is y isMoreSo i have to take 4x from this side. So making y the subject. This gets cancelled. So this is y is equal to 15 minus 4x that's all this is making y the subject.

The subject of a formula is the variable that is being worked out. It can be recognised as the letter on its own on one side of the equals sign. For example, in the formula for the area of a rectangle A = b h ( area = base × height ), the subject of the formula is .

Changing the Subject 1 (where Subject Appears Once) - YouTube YouTube Start of suggested clip End of suggested clip And get X on its own by undoing. The things around it. So let's think of the story of what happenedMoreAnd get X on its own by undoing. The things around it. So let's think of the story of what happened to X X is being multiplied by 3. And then we're adding 1 to it. Now.

The subject of a formula is the variable that is being worked out. It can be recognised as the letter on its own on one side of the equals sign.

How To Change The Subject of a Formula - GCSE Maths - YouTube YouTube Start of suggested clip End of suggested clip So this is going to be x is equal to 3 minus y. And so this is the answer for the second. Example.MoreSo this is going to be x is equal to 3 minus y. And so this is the answer for the second. Example. Now let's try another example v is equal to ir.

To rearrange an equation so that another variable becomes the subject, perform the same operations on both sides of the equals sign so that eventually this variable is by itself on the left hand side. Performing the same operations on both sides makes sure that the left hand side is always equal to the right hand side.

Rearranging Equations - GCSE Physics - YouTube YouTube Start of suggested clip End of suggested clip And that's an equal to BC divided by B. But we know that B divided by B is. Just one so we can sortMoreAnd that's an equal to BC divided by B. But we know that B divided by B is. Just one so we can sort of cancel those out we can then say that a divided by B is equal to C.