Table of Contents

## What is an example of an equation in math?

For instance, 3x + 5 = 14 is an equation, in which 3x + 5 and 14 are two expressions separated by an ‘equal’ sign. In an algebraic equation, the left-hand side is equal to the right-hand side. Here, for example, 5x + 9 is the expression on the left-hand side, which is equal to the expression 24 on the right-hand side.

## How do you write an equation for a math problem?

Writing Systems of Linear Equations from Word Problems

- Understand the problem. Understand all the words used in stating the problem. Understand what you are asked to find.
- Translate the problem to an equation. Assign a variable (or variables) to represent the unknown.
- Carry out the plan and solve the problem.

**What is a math equation?**

An equation is a mathematical expression that contains an equals symbol. Equations often contain algebra. Algebra is used in maths when you do not know the exact number in a calculation.

### How do you find the unknown equation?

The unknown is called a variable. In order to find the solution to the equation, you need to isolate the variable. You can isolate the variable by using inverse operations to manipulate the equation. Addition is the inverse of subtraction, and multiplication is the inverse of division.

### What is x if you subtract 17 from the equation?

We can subtract 17 from both sides of the equation to find the value of x. Answer: x = 51, so Jeanne needs $51 to buy the game. In the problem above, x is a variable. The symbols 17 + x = 68 form an algebraic equation.

**What is the value of (3 + 17 – 1 17)?**

In this case, we need to distribute 17 “1s” into three different slots. So we use the combinatoric calculation ( n + k − 1 k) where n=3 and k=17. So ( 3 + 17 – 1 17) = ( 19 17) = 19! 17! ∗ ( 19 – 17)! = 19 ∗ 18 2 = 171 .

#### How many solutions does a=17-B-C have?

A+B+C=17 Infinitely many solutions for A, B, and C exist for this linear equation in three unknown variables. Rewriting this equation as A=17-B-C shows you can choose any numbers for B and C, and solve for the corresponding A to form a valid solution.

#### How do I solve an equation using the equation solver?

To solve your equation using the Equation Solver, type in your equation like x+4=5. The solver will then show you the steps to help you learn how to solve it on your own. Need more problem types? Try MathPapa Algebra Calculator