Below, we provide you with some examples where we apply this method.
Example 1
X+2X=5+1
In this equation, we can clearly see that the elements X and 2X belong to the group of unknowns, and therefore, we can combine them.
Conversely, the elements 5 and 1 belong to the group of numbers and thus can also be combined.ย
3X=6
X=2
The result of the equation is 2.
Example 2
6Xโ1=5X+5
In this equation, we can clearly see that the elements 6X and 5X belong to the group of variables, and therefore, we can combine them.
Conversely, the elements (โ1) and 5 belong to the group of numbers, and thus they can also be combined.
6Xโ5X=5+1
X=6
The result of the equation is 6.
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Exercises on Equations by Simplifying Like Terms
Exercise 1
Assignment
7a+8b+4a+9b=?
Solution
We arrange the corresponding elements
7a+4a+8b+9b=?
We add accordingly
11a+8b+9b=?
11a+17b
Answer
11a+17b
Exercise 2
Assignment:
3x+4x+7+2=?
Solution
We add the corresponding elements
7x+7+2=?
7x+9
Answer
7x+9
Do you know what the answer is?
Exercise 3
Assignment
18xโ7+4xโ9โ8x=?
Solution
We input the corresponding elements
18x+4xโ8xโ7โ9=?
We solve accordingly
22xโ8xโ7โ9=?
14xโ7โ9=?
Answer
14xโ16
Exercise 4
Assignment
7.3โ
4a+2.3+8a=?
Solution
First, we solve the multiplication exercise
29.2a+2.3+8a=
We arrange the terms accordingly
29.2a+8a+2.3=
We add the terms accordingly
37.2a+2.3
Answer
37.2a+2.3
Exercise 5
Assignment
83โa+914โb+191โb+86โa=?
Solution
We input the corresponding elements
83โa+86โa+914โb+191โb=
We add accordingly
83+6โa+914โb+191โb=
We convert the mixed number into an improper fraction
83+6โa+914โb+910โb=
We add accordingly
89โa+914+10โb=
89โa+924โb=
We convert the improper fractions into mixed numbers
181โa+924โb=
181โa+296โb
Answer
181โa+296โb
Do you think you will be able to solve it?