-2x + 3 = -15
Subtract '3' from both sides
-2x = -18
Divide both sides by '-1'
2x = 18
Divide both sides by '2'
x = 9 The ANSWER!!!!
Any number that makes an equation true is a 'solution of an equation'. it is a solution
It's the value that when substituted in for the variable, makes the equation true. Ex: x + 1 = 3 The value 2, when substituted for the variable x, makes the equation true.
solution
Such an equation is called an IDENTITY.
Such a value is said to be a solution, or a root, of the equation.
Solution
an solution
That's the "solution" of the equation.
solution
It's called a solution
solution
a = Zero