7xy + 5yz -3zx , 4yz + 9 zx -4y , -3zx + 5x - 2xy ppz tell me the ans so fast
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Step-by-step explanation:
(7xy+5yz-3zx) + (4yz+9zx-4y) + (-3zx+5x-2xy)
= 7xy+5yz-3zx+4yz-9zx-4y-3zx-5x+2xy
= 7xy+2xy+5yz+4yz-3zx-9zx-3zx-4y-5x
= 9xy+9yz-15zx-4y-5x
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8876-$+[=®°=:™™℅℅°°°<°=°°5655===+==-
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