Two step Algebraic equations are easy and quick. They have only two steps to do. You have to isolate the variable through addition, subtraction, multiplication or division to solve two step algebraic equations.
Following methods help you solve two step algebraic equations easily.
Solving equations with one variable
Take the following problem
Step 1
First thing to do is to write down the problem so that you can visualize it.
Step 2
Use either addition or subtraction to isolate the variable.
Step 3
Keep -4X on one side and all the whole numbers on the other side.
In order to do it, you need to do the “additive inverse “which is the opposite of +7, that is -7.
Subtract 7 on both sides to make the equation remain balanced.
Step 4
Eliminate the variables co efficient through multiplication or division
In this example, the co efficient is -4.When you divide by -4 on both sides X is multiplied by -4 and you get the answer that X is 2.
Let us see all the steps together
In this method, there are only two steps taken-subtraction and division.
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Method2
Solving equations with one variable on each side
Take this example
-2X-3=4X-15
Step 1
First, make sure that both variables are the same. Here you have ‘X’ as the variable on both sides.
Step 2
Move the constants to the right side of the equation
To do this, use addition or subtraction to eliminate the constant from the left side of the equation
The constant is -3. So, you have to take +3
Add +3 to both sides of the equation
Step 3
Move the variables to the left side of the equation
To do this, you need to take the opposite of 4X which is -4X.
That is
Step 4
Simplify the equation by dividing both sides of the equation by -6.
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There are other methods to solve two step equations
While keeping the variable on the right side as in
11=3-7X
Step 1
Combine the constants by subtracting 3 from both sides
Step 2
Divide by -7 on both sides to solve X
Don’t forget the golden rule that whatever applications you do to one side should be done to the other side to maintain the balance in Algebra equations.
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