4y+y=10
5y=10
y=2
That is called an equation. Any time a certain amount of numbers equals another number, that is called an equation. This is a perfect example of one, as 10 does in fact equal 10.
It equals a simple linear equation in 'y'. Its solution is 7/3 .
-10 plus 10 equals 0.
The equation is -2y + 16 = 10
That word "equals" in there makes it an equation.
equal
y = 10
-5
-2x + 8 = 7x - 10 is technically an equation, in and of itself.
-2
It is an equation and the value of x is 8
y is the variable