solve these questions!
1. Add:
1) 4x+6y + 5z, -3x - 9y and x+3y- 4z
i) 7x + 2y - 4xy, 3x-2xy® + 7 xy and 2xy-5x + 6yo
ii 4x' + 3y - 6x+4y-3, 2x-y + 3x - 4y + 3 and - 6x-2y-1
v) 6ab-a?- b-7, 5a - 7 ab +36° +9 and -4b2-3 ab-2a - 3
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*Awnser*
Hope it helps...
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Step-by-step explanation:
so
1) 4x+6y+5z-3x-9y+x+3y-4z
= 2x+z
7x+2y-4xy+3x-2xy+7xy+2xy-5x+6y
=5x+8y+3xy
4x+3y-6x+4y-3+2x-y+3x-4y+4-6x-2y-1
=-3x
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