Description: 👉Learn how to solve a system (of equations) by elimination. A system of equations is a set of equations which ...

👉 Learn how to solve literal equations involving formulas. A literal equation is an equation where the unknown values are ...

Solve the equation \(\frac{3s + 9}{4} = 7\). This means \(3s + 9\) has all been divided by 4. To solve the equation, inverse the operations. The opposite of dividing by 4 is multiplying by 4. Any ...

An equation is a mathematical statement showing that two expressions are equal. The two expressions are linked with an equals symbol (=). The unknown variable (often the letter \(x\)) can take any ...