Question

add the following. x+3y,1-4x- 3y,2x+y-7​

Answer 1

(x+3y)+(1-4x-3y)+(2x+y-7)

Step 1: Add like terms:

                   add all the terms with x and y. Keep track of the negatives

                   add the constants

x terms:

                   x-4x+2x = -x

y terms:

                   3y-3y+y = y

constants:

                   1-7 = -6

Result: -x+y-6

Hope this helped you

Have a great day

Answer 2

Answer:

x + 3y, 1 - 4x - 3y, 2x + y - 7 = - x + y - 6

Step-by-step explanation:

 +x+3y,

-4x- 3y+1,

+2x+y-7

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-x + y - 6

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1x - 4x+2x = -x

3y-3y+y = y

1-7 = - 6