$$3x\ =\ y\ -\ 6$$ find x?

$$mx\ =\ \frac{V}{a}$$ find x

$$8\ +\ c\ =\ x\ -\ y$$ find x

$$-51\ -\ x\ =\ c$$ find x

$$3d\ =\ \frac{3h}{4x}$$ find x

$$4\ -\ x\ =\ ay\ +\ b$$ find x

$$Px\ =\ 2y\ +\ 2a$$ find x

$$V\ =\ \frac{1}{3}bh$$ find h

$$4xy\ =\ m\ -\ c$$ find x

What do you call the answer for addition?

(a)  

A (a)   in an equation is like a placeholder for a value that can change. It's usually represented by a letter, like "x" or "y".

the result of subtracting one number from another

(a)  

the result of dividing one number by another

(a)  

a number that can be multiplied by another number to get a product

(a)