Subtract:- x + y+ 1 from the sum of x + 2y - 6 and 3x - 4y + 9
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Answered by
5
3x-3y+14
Step-by-step explanation:
=x+2y-6+3x-4y+9-(x+y+1)
=(x+3x)+(2y-4y)+(6+9)-(x+y+1)
=4x-2y+15-(x+y+1)
=4x-2y+15-x-y-1
=(4x-x)-(2y-y)+(15-1)
=3x-3y+14
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3
Step-by-step explanation:
3x-3y+2 . it is the correct ans
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