alleryTo solve a linear equation, we isolate the variable by
Achanging only one side
Bdoing the same on both sides
Cdeleting the variable
Dsquaring only one side
Answer & Solution
Correct answer: B. doing the same on both sides
1. An equation is a balance between two sides.
2. Adding, subtracting, multiplying or dividing both sides by the same number keeps the balance.
3. Changing only one side breaks the equality.
_Source: Wikipedia, Elementary algebra, Linear equations with one variable_
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