Question

identify the errors and correct them 3. 3x+4y=7xy 4. 7y²-y²+3y²=10y² ​

Answer 1

Answer:

Step-by-step explanation:

3)

$3x + 4y = 3x + 4y$

here unlike terms we can not add

4)

$7 {y}^{2} - {y}^{2} + 3 {y}^{2} = 9 {y}^{2}$

now see the process

$6 {y}^{2} + 3 {y}^{2} \\ = 9 {y}^{2}$

hope it helps you

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