Question

add 2 X + 3 + 4 Y with 3 x - 9 Y + 2​

Answer 1

Answer:

2x + 3 + 4y with 3x - 9y +2

2x + 3 + 4y

3x +2 - 9y

5x + 5 - 5y

= 5(x+1+y)  ( you might not need this last step but it will impress your teacher! )

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Answer 2

2x + 3 + 4y Rearrange this

+ 3x - 9y + 2 equation

_____________

2x + 3 + 4y Simply add them

+ 3x +2 - 9y now

_____________

5x + 5 - 5y

Remeber that: ( - ) + ( + ) = ( - )