Sistemas por el método de reducción por suma o resta. (3x+y=4) y (2x-4y=5)
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Given:
The equation is
To find:
The reason for each statement.
Solution:
We have,
Using distributive property, we get
On combine like terms, we get
Using addition property of equality, add 2x on both sides.
Using subtraction property of equality, subtract 7 from both sides.
Using division property of equality, divide both sides by 20.
Therefore, the required reasons are:
2. Distributive property
3. Combining like terms
4. Addition property of equality
5. Subtraction property of equality