# Solving Linear Equations Problems

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Subtract the first equation from the second equation and solve for y. Multiply the 1st new equation by 7, subtract the second new equation from the first new equation, and solve for x) = the demand function for the second item.

Substitute the value obtained for y into either of the original equations. Solve the following system of equations by elimination. How should prices be set for each item to equate supply and demand? Answer: The price of the first item should be set at \$1.80 and the price of the second item should be set at \$1.50. Set the supply function for item 1 equal to the demand function for item 1 and collect terms. From Part A the following system of equations has been obtained. 1st equation from Part A 2nd equation from part A Step 1.

If Kaylee has 19 hours available each week to complete homework and reading for her classes, which equation best models the situation? So how much time is it going to take her to complete the homework?

Well it says that she expects to spend 2 1/2 hours each week working on homework for, well actually I should say over here, for each class that she takes, she expects to spend 2 1/2 hours each week working on homework. For each class that she takes, she expects to spend 2 1/2 hours each week working on homework. So the total amount that she spends on homework, so the amount that she spends on homework is going to be 2 1/2 times C, up in parentheses just to make it clear what I'm doing here.

, or square roots, or other more-complicated expressions.

Linear equations are the simplest equations that you'll deal with.

So that's going to be 2 1/2 hours each week per class. So it's gonna be 2 1/2 time C is the amount of time she spends on homework. Well, it says over here she expects to spend an additional 6 1/2 hours each week completing the assigned reading for all of her classes together.

So this sentence says it doesn't matter how many classes she takes, she's gonna spend 6 1/2 hours reading.

Well, in this lesson we’re going to make Solving Linear Equation Word Problems manageable with easy to follow tricks and steps. Now, these steps might not seem all that remarkable, but once you see them in action I guarantee that writing equations from word problems and solving them will become like second nature! This is where you will write down all the information you’ve gleaned from the problem, and formulate a solution by writing an equation to model the situation, as Khan Academy accurately states.

We already know how to solve all different types of equations. And we also know how to translate algebraic expressions and equations. Together we will walk through 9 examples in detail ranging from finding consecutive integers to finding hourly wages, profit and cost, distances for rectangles and triangles, and people’s ages.