Write / Solve Algebraic Equations

An algebraic equation is a mathematical statement that shows the equality of two expressions, typically involving variables and constants, such as $$2x + 3 = 7$$ .

To solve an equation means to find the value(s) of the variable(s) that make the equation true.

$$d = 39$$ .

$$t = (0.10d) + (0.25q) + (0.05n)$$ .

To isolate a variable, you perform operations to both sides of the equation to get the variable alone on one side.

$$p = 2$$ .

$$3x = 48$$ .

$$9(23) = 207$$ .

Subtract 13 from both sides: $$d = 52 - 13$$ .

A variable is a symbol, often a letter, that represents an unknown value in an equation.