how to solve algebra
Answers
Explanation:
Read the problem and decide what “x” represents. This is the easy part. ...
Define all other variables described in the problem in terms of x. ...
Write an equation that puts all of the numbers together. ...
Solve the equation.
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Let’s start by listing the steps to solve an algebraic word problem:
Read the problem and decide what “x” represents.
This is the easy part. For example, if the problem asks for Mary’s age in the year 2032, then let x equal Mary’s age in 2032. If the problem asks the distance between boat A and boat B, then let x represent the distance between boat A and boat B. Don’t overthink this step. It’s really that easy!
Define all other variables described in the problem in terms of x.
Suppose we know that Mary’s sister Julia is 3 years older than Mary. That means Julia’s age will be x+3 in the year 2032.
Write an equation that puts all of the numbers together.
This step depends on the wording of the question. For example, if we know the sum of Mary and Julia’s age in the year 2032 is 67, then we could write x+(x+3)=67. If we know Mary’s age in 2032 is nine tenths of Julia’s age in 2032, then we would write x = (9/10)*(x+3).
Solve the equation.
This step is pretty straightforward. Break open your algebra toolbox and solve the equation you created in step 3 for x. As long as you defined x correctly, then y