What is 3x + 2 (x-y) ?
2 answers:
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Answer:
An unknown variable by reversing the process used to form the original equation.
Step-by-step explanation:
The opposite process rule says to solve for - an unknown variable by reversing the process used to form the original equation.
If an equation indicates an operation such as addition, subtraction, multiplication, or division, solve for the unknown variable by using the opposite process.
For example:
Lets say we have to find
Here 25 is subtracted from both sides of the equation to isolate x.
we get x = 10
Check this :
Answer:
20/9
Step-by-step explanation:
Alright, so by using the "keep me, change me, turn me over" method - we can easily solve this:
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