When solving equations using subtraction, they will have this form: x + b = c
Recall that ax + b = c is a linear equation.
Therefore, the equation x + b = c is a linear equation with a = 1.
To see this, notice that 1.x = x
Thus, we can rewrite x + b = c as
1.x + b = c
You can solve x + b = c in one step.
When solving one step equation of the form x + b = c, subtract b from both sides of the equation.
Let us illustrate with examples:
Example #1
Solve x + 3 = 8 for x
Alternatively, you do not have to put the -3 beneath the 3. You can also put it next to it.
x + 3 = 8
x + 3 − 3 = 8 − 3
x + 0 = 5
x = 5
Example #2
Solve x + 5 = 10 for x
Example #3
Solve x + 5 = - 10 for x
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Aug 09, 16 01:40 PM
Average age of Dipu and Apu is 22 years. Average age of Dipu and Tipu is 24 years. Age of Dipu is 21 years. What are the ages of Apu, and tipu ? Let
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