Question

what is the answer for (2x+9y) -3x x 4y+7y​

Answer 1

Answer:

Given expressions are: 2x+9y−7z, 3y+z+3x and 2x−4y−z

Adding the given expressions:

(1).Verticalmethod

We can see that, (i)=(ii)

Hence, both horizontal and vertical methods give the same answer.

Step-by-step explanation:

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Answer 2

Answer:

$= 2x+16y-12xy$

Step-by-step explanation:

$= (2x+9y) -3x * 4y+7y$

( Arrange like terms )

$=2x+9y+7y-3x * \:4y$

( Combine like terms )

$=2x+16y-3x* \:4y$

( Multiply )

$= 2x+16y-12xy$